Anyone who has done any Android development knows that the emulator is the weak point of all Android development tools. On the upside it runs true ARM code, so what is ran on the device really is what is ran in the emulator unlike iPhone development. However, this interpreter is horrendously slow and with the improvements to Android 3.0, it feels like it just got a heck of a lot slower.
I downloaded the 3.0 SDK last night, anxiously ready to try out the new features in this tablet focused OS. Unfortunately, what I got was about 10 minutes just to boot the emulator, and once I got in it I lost out completely on the new experience because opening anything took absurdly long. All the animations where unreasonably choppy. I'm honestly unsure how Google was able to develop any of the "built in" apps on this given how slow it is.