I have a 24" iMac 3.06 Ghz that's my main computer and runs great, and I use my 2008 macbook air (1.6 / 120 GB HD / 2GB) for surfing, streaming video, email, microsoft office and watching HD movies/shows. so I was debating the upgrade since my '08 Air does most of this well, yet in a frustrating manner. My main complaints were the '08 couldn't handle Lion (still running snow leopard) so no iCloud, battery life was down to about 2.5 hours, it would get very hot while streaming any videos (especially flash), and the fans would kick in very quickly and were annoyingly loud.
Today I picked up a new mid 2012 Air 13" 1.8/128 SSD/4GB and couldn't be happier. As a test, I've been streaming 2 flash videos for 20 minutes and the fans have yet to kick in full stream (barely audible), the SSD is incredibly fast and the overall performance is in the neighborhood of 3x the 2008 if not better. In addition to the speed I'm most pleased with how much cooler and quieter the 2012 runs, the noise and heat of the '08 had really become unbearable for the past year or so
the 2008 is now officially my 5 year old's "gaming" computer, PBS sprout games
Today I picked up a new mid 2012 Air 13" 1.8/128 SSD/4GB and couldn't be happier. As a test, I've been streaming 2 flash videos for 20 minutes and the fans have yet to kick in full stream (barely audible), the SSD is incredibly fast and the overall performance is in the neighborhood of 3x the 2008 if not better. In addition to the speed I'm most pleased with how much cooler and quieter the 2012 runs, the noise and heat of the '08 had really become unbearable for the past year or so
the 2008 is now officially my 5 year old's "gaming" computer, PBS sprout games