Grab the free app from speedtest.net. I'm getting 1062k down/147k up in Avondale.I do have full 3G (at least that's what the phone indicates), it's just that the speed is aweful.
Sorry OP, didn't mean to hijack the thread...
If the Dell Mini 5 is anything like it's bigger brothers, it will be a fun gadget to own. I've got both Android 2.0 and Windows 7 on my Mini 10V (2GB upgrade).
I'd played with a Droid and the user experience was okay. I just don't see the point of getting a tablet device that's barely bigger than the phones. But to each their own.