*psh*. It's a tough choice, really. I'd go with the Eris. Seriously, though, with all of the apps on my phone, here is what I really use a lot:
- gmail
- twitter/facebook (hardly facebook, though)
- browsing/searching
- messaging
- Lastpass, for looking up online passwords, plus connecting to sites that I have stored in the database
- weather (obviously, something that could be done with the browser)
- Evernote
- Kindle app (just for those times when I am waiting for something and want to fill some time - waiting for my son to be done with soccer practice, say.)
- I should note that I just did navigation for the second time today, the first time using it to go when I wasn't sure of the directions already. It's fantastic, though the phone doesn't like it much - the temp was up to 49 C by the time I was done.
I have a ton of other apps; I hardly ever run them. Looking at all of these, only the Kindle app is missing for Web OS.
I'd say that if I needed the keyboard, and was used to the Pre+, then obviously I'd have a tough time moving to the Eris. However, if there is an app for Android that absolutely crave, then obviously moving to the Eris would be smart. Also, a rooted Eris running one of the Froyo ROMs is a pretty fast device, and, these days, rooting an Eris is not that difficult to manage, even if it is stock, and moving to another ROM is not rocket science, too.
It's a tough choice, that's for sure. I'd go with the Eris, but, you see, you could say that when I bought the Eris, I had already made that choice anyway. You may want to wait a bit, though; I thought that I read that an update to WebOS is coming very soon.