I'm totally on the fence about this. I just got my Droid a few weeks ago, I absolutely love it, but if I'm able to get (technically) a better phone for the same price, I'm thinking about doing it.
I totally ignored the Incredible when upgrading because of the lack of physical keyboard, but now that I've been using the Droid for a few weeks, I rarely, if ever, actually use the physical keyboard. Android has got the on-screen qwerty down so well that I see no need for it.
I'm concerned with the size as well.
That and the fact that I'd need to send my Droid back next week in order to make my 30 days, leaving me without a smartphone for a few weeks at least.
Decisions, decisions.
I just bought my droid a couple weeks ago and will probably return mine for the droid x. But like you I will also have over a week to live without a phone til the phone is released.
I bought my phone at walmart, and was curious about how simple, or difficult it is to return a cell phone and cancel my service. I have been thinking about this constantly and at several occasions, decided that it wasn't worth the hassle and that I should just keep my droid. I just have a feeling that walmart customer service will mess something up. Idk, just a feeling I guess.
The Droid X is one sexy beast though.