So I've had this system for approximately 1 month now (About 4 days away). I've been using it constantly as my primary machine. Don't really have much of a choice since I sold my Mac Pro for this lol. Furthermore, I am horrible at multiple systems. Keeping just my current OSX and Windows in nice working order is hard. Trying to manage 2 systems with 4 OS or more is just torture with me. Anyways, continuing on. My specs are: 2.13GHz Intel Core 2 Duo (S)L9600 Processor, 6MB L2 Cache 2GB Integrated DDR3 1066MHz Ram 128GB Samsung Solid State Drive w/ 3.0Gbps SATA 256MB Shared DDR3 nVidia GeForce 9400M Video Card (300MHz/1075MHz Core/Shader Speeds) 40 wHr (5560mAH) Integrated Battery @ 7.2Volts, rated for 750 Cycles before 80% Health My current configuration for OS/Drive is: 64GB - OSX Snow Leopard 10.6, Build 10A402a 64GB - Windows Vista 7 Ultimate 32-bit Now, my current settings is perfect for me. *Do note, this review is based on my opinion on my system, it may differ from other people's opinions Good things about this revision of the MacBook Air compared to my older Rev. A: - It's faster, coming from a Rev. A (1.6GHz/80GB HDD), it is extremely faster in many ways even regular surfing the web and checking e-mails. - The screen is brighter. This is only if you got the ones with no lines - The battery life has improved. For me, its a pretty big improvement from my Rev. A's 3.5 Hours to current 4-4.5 Hours - Charging time has greatly improved. I can easily recharge the system to a good usable 80-85% within 2 hours. The bad things about this revision compared to the Rev. A: - It runs hotter. This is caused by many factors including a faster processor generating more heat, the video card generating more heat due to sharing with the northbridge, etc. - The volume on the integrated speaker is quieter/softer by at least a notch. I'm not sure why this is. - The vents are not as efficient as the Rev. A's. It seems like my heatsink is somewhat warped, pushing on the vent holes. This is not a normal occurrence so this isn't a "huge" point on the negative. Other notes about the Rev. C: The two major things I noticed is that the system is: The system will downclock itself very easily, especially the 2.13GHz model. Think of it like this: If CPU temperature reaches above 80-85 Deg C, the 2.13GHz speed will be downgraded to 1.86GHz or 1.60GHz to allow the fan/heatsink to cool the processor core down/manage it under 80-85 deg C temperature. This is also the reason why the Rev. C's 2.13GHz has repeatedly reported being "slower" then the Rev. B's 1.86GHz model, especially the Processor/Graphics scores. The second item on the list is the graphics core. Our graphics core is clocked at: 2D: 100Mhz Core 1075MHz Shader 3D Low Power: 150Mhz Core 1075Mhz Shader 3D: 300MHz Core Speed 1075MHz Shader Speed However, the bad part about this is that on specs (or on paper), the 3D speeds should be: 3D: 450MHz Core Speed 1100MHz Shader Speed *Note: Ram speed is excluded because the ram is shared and not dedicated. So in reality, our video cards are still "underclocked" compared to the Aluminum MacBook/13" MacBook Pro/15" MacBook Pro/17" MacBook Pro/iMac Base Model/Mac Mini versions. However, if we were to overclocked the 9400M to stock speeds, it is 100% possible. I was able to do it for a little while but for some reason my settings will not change anymore (not sure what happened here). At 450Mhz/1100MHz, the system is very responsive. CoD:WaW is playable at a higher resolution (1024x768 vs my current 800x600). *Note: These clock settings are given from Windows Vista/Windows 7. Actual settings in OSX are unknown. Now the funny thing is, if you were to overclock the CPU (Yes, this is possible) to 281Mhz FSB (vs 266MHz FSB), given a total clock speed of 2.26GHz, the graphics performance is the same as if you were to have a default (450/1100MHz) clock speed. (Not sure why this is, needs more testing) For you numbers people, my current Geekbench scores are: 32-bit: 3372 64-bit: 3601 For Windows 7 scores: Processor 5.4 Memory 5.5 Graphics 5.2 Gaming graphics 5.1 Primary hard disk 5.9 *Note: Geekbench scores were conducted with Coolbook running only to regulate throttling. Stock voltages were used. Windows 7 scores were conducted with no undervolting software. Updated 186.06 Graphics drivers were used with stock 2.13GHz processor speed and 300MHz/1075MHz graphics core/shader speeds. Overclocked GPU or CPU resulted in the same score for Windows 7. Overclocking GPU or CPU is currently not possible in OSX, if there is, please inform me so I can test this in OSX also. Temperatures for the MacBook Air comes to something like this: @ Light usage -> 50 deg C to 75 deg C, fans @ 2500RPM - 4500RPM @ Med " -> 60 deg C to 80 deg C, fans @ 2500RPM - 6200RPM @ Heavy " -> 75 deg C to 85 (90) deg C, fans @ 6200RPM I have redone my thermal paste using many ways. Some of the ways include: - One small pea sized drop - 1/10th the size of a pea sized drop - Evenly spreading out upon the chip - A huge blob like the picture in the service manual So far, my results from these 4 ways are (in order): - No real difference - Heat is transferred very easily to the heatsink, but temps hit a high of 98 deg C for GPU and 89 deg C for CPU - On cold boot up, temps were a cool 35-40 deg C. With 80-100% load (gaming), temps hit a high of 85 deg C - For some reason, this has been the best result for me. Cold boot up temps are higher, but they stay within 55 deg C to 65 deg C with fans at 2500RPM even after 2 hours of light/med usage. Under gaming conditions, temps rise but do not exceed 85 deg C for CPU or GPU. Last thing that comes to mind is Battery Life. My current battery life results somewhat like this: Normal usage includes Web surfing, Mail.app in background w/ 5 minute auto check, Adium, iTunes running on shuffle. @ Minimal Brightness -> 5.5 Hours @ Brightness 1/2 -> 4.5 Hours @ Brightness 3/4 -> 4 Hours @ Full brightness -> 3.5 Hours In Windows 7, I don't have "Normal usage", however, I have gaming which is far more interesting in Windows @ Brightness 1/2 -> 2 Hours @ Full Brightness -> 1.5 Hours, sometimes 2 depending on game. Games involved include: Call of Duty: World at War Multiplayer and Star Wars: Empires at War. Wifi is on. *Note: The battery life results have a +/- 15 minute. The times are not exact. My current battery status is 99% Health (5495 mAh) with 77 Cycles This is all I can think of so far. It's too hot to think anymore and I want my ice cream lol. Feel free to comment, I'll try to answer whatever I can. If there's any other tests you wish for me to run, please speak up.