Since you're on this forum I'm sure you called around to best buy stores and all the nearby Verizon shops. Sucks about the waiting. I got my phone a week after it came out and I know of only 3 phones that were available in the area, and that's with 0 advertising.
Anyways the HD2's been out for a while and it seemed kind of silly to have such a big phone back when it came out. Now that I have an incredible I actually love going online with it. The touchscreen and automatic resizing makes web browsing easy and fun. Plus youtube videos play great and with beautiful resolution, so I can definitely see the advantage of having a bigger screen.
That said, as a phone I would just feel like it was such bs to be talking on/holding this thing that's as big as my hand. By serendipity I found out about the incredible the day it came out. I'd been frustrated with available verizon phones for so long and I couldn't find my iPod, so I thought 'crap, maybe I can just get a new phone and use it to play music'. As luck would have it the incredible had just been released like 5 hours earlier. What struck me was the complete straightforwardness of the phone: android OS, capacitive touchscreen with no unnecessary keyboard, memory expandable to 32gb which is big enough to hold enough music/movies if you want, and a normal size for a phone rather than enormous and almost square shaped like the hd2. For so long it seemed like every phone that came out was silly. They would have either too little memory, 16gb is too small for me to consider it a useful media-phone, unwanted buttons/keyboard, giant square shape, etc etc etc... I felt like the incredible was just a normal, straightforward phone without all the BS design problems that had been coming out.
I would have to carry it around for a few days to really decide, but it seems like the increased size of the EVO is just ridiculous as a phone or internet device. It seems like its still to small to compete with something like an ipad, but too big to be held in one hand while casually browsing or using apps like you can with an incredible.