Add me to the list. I upgraded to the Epic on launch day from a Pre. I was feeling somewhat guilty about it because I really liked the Pre, but I needed an upgrade and was tired of patching just to get basic functions on a phone that other OS have already. The final straw was after update 1.4.5 when my virtual keyboard stopped working for some odd reason. I could download and install it, but I got some IPK or whatever error every time I tried to open it.
Anyways, some things I like about the Epic over the Pre:
*Speed - this baby is fast! I didn't overclock my Pre because I didn't want to take the risk.
*Apps - way more apps and a greater percentage of free apps. Also there is an app for mostly everything. The Pre needed way more quality apps and more functional apps. A year and a half after launch, WebOS doesn't even have a native document editing program. I am aware you can use Docs to Go using the PalmOS emulator, but I shouldn't have to and with Android or iPhone or even BB, I don't. Also, you had to pay for a greater percentage of the Pre's apps and many of them were garbage (e.g. the ones from Brighthouse Labs).
*Battery life - it's not great (I get about a day), but way better than the Pre's with the stock battery. I bought an extended battery for the Pre and it improved things a great deal.
*Widgets - I didn't think I'd like them, but they're pretty cool.
*Homescreens - again, I'm surprised how much I've used them. I also like TouchWiz because it gives me a Pre-like environment with the launcher bar.
*Screen - simply can't go back to the Pre's small screen after the Epic.
*Native virtual keyboard - OK, the Homebrew guys made a pretty decent one, but it stopped working after the last WebOS update and I couldn't fix it again. The Epic's virtual keyboards (both Swype and native Android) are awesome! Why Palm never released a virtual keyboard is beyond me.
*Better keyboard - physical keyboard for the Epic is awesome! Maybe the best I've ever used, but I still mostly use the native Android one. The Pre's keyboard wasn't that great.
*Strong build - feels like a quality device. My Pre was starting to break down in the end.
*Front-facing camera - 'nuff said.
*Fact that I don't have to use patches for basic applications/features. It was ridiculous that I had to patch my phone just to read email in landscape mode. That's one example of many.
*Visual voicemail.
What I miss about the Pre:
*WebOS - this is a given. So easy to use and I loved the card system. Notifications were awesome and the native email client beats the pants off Android's.
*More 3D games - or this is what it seems. I've been disappointed with Android's selection of games. If there are 3D games for Android, I don't really know where to find them. Anyways, the Pre had a good selection of them from EA Sports, Gameloft and Glu Mobile. Still, neither system can compare to iOS for games.
*Touchstone.
*Charges faster than the Epic.
*WebOS community - these guys were awesome and it was a pretty tight group. Fiercely loyal and very helpful. Loved the fact that their passion more or less kept this OS alive. However, they seem to be getting desperate and grasping at straws in waiting for a new phone. I don't think Palm is going to release a new phone this year. Honestly, I think HP bought Palm for the interface for a tablet and will put scant attention to the phones.
*Bubbles - this game was addictive and it is available on Android, but the WebOS version was much, much better and had more options.
Overall, I am happy with the Epic and don't regret the change. Android has pleasantly surprised me and I'm getting more savvy with it day by day. I think TouchWiz helps in that regard. I probably would have liked the Evo too, but it was always sold out where I live. With Palm, they really had a great chance with the Pre, but they screwed it up and really only have themselves to blame. Their advertising campaign was atrocious and laughable. The build quality of the Sprint Pres were bad. As awesome as WebOS was, it still wasn't the finished product. And Palm focused too much on pleasing Verizon even though Verizon didn't do jack to sell the phone. I might go back to WebOS after a new phone and they get way more apps. But I don't know, Palm has gone out of their way for app developers (it's kinda pathetic to see Rahul Sood beg developers to come to the platform) and made it easy for them to make apps, but they still won't jump on board.