Hello everyone! im really excited because next month im going to be purchasing a Black(maybe white not 100% sure on this yet) 16GB iPhone 3GS!! gonna have to pay a high deposit but the iPhone is so worth it! but I have a few questions about the device and i hope that you pros can answer all my questions thoroughly and in detail for me. 1. I have a ipod touch 2g, and after jailbreaking and adding such things such as sbsettings, and winterboard etc. it really begins to make my ipod really sluggish/laggy. how do these things affect the 3GS? with its added power does the phone begin to lag with winterboard enabled? or is it still just as fast as it is before you added winterboard etc? 2. another question is how is the speaker sound quality on the 3GS? I read reports on other forums that the 3gs actually has a louder/clearer generally better overall speaker than the 3g. is this true? how would you guys rate it compared to other cell phone speakers? is it LOUD? 3. White vs Black. which color do you you guys/gals prefer? ive heard that the black doesn't show dirt but shows scratches really bad. but then i heard that the white doesn't show dirt but gets dirty, but may begin to get discolored and turn a brownish color. also ive seen the white in person and i think the black just looks much more sleek/cleaner. what about u guys? 4. Also since u have to pay a $30 data plan with the iphone, what are the limits? does using safari/cydia, downloading apps videos, web based apps cause your bill to go up, or is it pretty much unlimited? you can use the network as much as u want? 5. I've read about the iPhone 3gs have a yellowish tinted screen. i was very sad when i first read about this because i thought that the touch 2g, and the 3g were already "warm" enough, and to tint the screen even warmer is just overkill. but i heard this was a fault with apple and that there are indeed 3gs's out there with normal screen temps, like the touch 2g, and 3gs. how many actually have a "warmer" screen? how is it? does it interfere with watching videos, looking at pictures? also did anyone exchange theirs and get a normal screen? how many times did it take you? 6. what does the "airplane" mode do on the iphone? when turned on does it save battery life? thanks for all your help.