And here we go. The enterprising hackers at xda-developers have put together an "pre-alpha" version of Android 4.0 Ice Cream Sandwich for the Kindle Fire, marking the first time we've seen Amazon's budget tablet running the latest and greatest version of Android. (And the first time we've seen it run a proper tablet OS and not a variant of Gingerbread for phones, actually.) Things seem to be working fairly well for an early build, which is based on CyanogenMod 9, but audio doesn't work consistently and there are some video glitches as well. Still, there's bound to be a lot of interest in making the $199 tablet run the most recent version of Android, so we expect to see a lot of rapid progress -- we'll keep you updated.