New? Lurking? April 2006? 65 posts?
You don't see a difference in speed, screen, browser, etc., from the 7130 and 8820?
1. WiFi is faster. Maybe you need to tweak your settings.
2. Sure you can, several threads here with that info.
3. Nope, gotta buy one. I did. No memory card, no videos, mp3s, etc.
4. Must be TeleNav. The best and worth it. Others like Nav4All and AmazeGPS a lot.
There's an entire thread here on great SD card deals. ECost.com has good deals. MicroSD Card Current Deals