Epocrates should have apps for Android and webOS in early 2010.
I'm eager to see how these compare with the iPhone version of Epocrates.
Android is really becoming popular and it seems to be gaining tremendous traction as HTC and others make really nice smartphones running Android. On the other hand, the Palm Pre has also been a real hit among loyal Palm OS users, but I'm anticipating that many of them won't switch over to Sprint just to get a phone running webOS. These users are more likely to jump to the Apple iPhone (as many of them already have) or to Android.