I've installed the 4.2 beta 3 on my iPad this morning and I have to say it's phenomenal. I can't compare this beta with the first two, because I didn't installed them, but this version is really fast. Even if I'm not an ultra-multitasking user I use two or three apps at the same time I couldn't wait to try how the machine responds to a lot of apps in the background. So I opened two tabs in Safari to see if they would have been refreshed and then I launched Calendar, Contacts, Notes, Maps, iPod (with music in background), Videos, YouTube, iBooks and Mail. Obviously all at the same time. Then I started to switch between apps really fast and without staying in every app more than 4-5 sec. I loaded multiple maps in Google Maps, opened a PDF in iBooks, played a video, returned to maps, skipped to the next song in the iPod app, opened some emails with images attached and in the end returned to Safari. The two tabs didn't refreshed! Awesome. So, the iPad could have more powerful hardware specs *and in Spring it probably will but for now I'm personally really excited and happy with what has been done with Multitasking. It obviously depends on the usage, but it's really snappy and fast I didn't see any slower task comparing to OS 3. Can't wait to see the official version of 4.2, but it seems we're very close (regarding performance I mean). Now I'm really interested to test the battery life in my daily usage.