No way... I don't think there are any usb hubs in the world that would fit inside an axim. Think of it this way... pda are suppose to be small, the smaller one is the more likely people will want it. I'm sure, you could even ask afarre, that there is little to no free room inside that case. I mean... go ahead, proove me wrong. Post a link to the smallest hub you can find, I'll do the same. If we can find one small enough, and find a spot big enough inside the case, I'd be all for a hub. And I think the main battery outputs 5v, which is usb... no problem there.
Edit:
http://news.softpedia.com/news/The-W...ub-31275.shtml
http://cgi.ebay.com/P27-New-Mini-4-P...QQcmdZViewItem (I don't think the second one would work, the components stand too high.)
http://www.beststuff.com/computers/b...le-keypad.html
None of those would fit...
edit2: The battery outputs 3.7v... oh well, I'd probably make an external power supply for anything usb I wanted to hook up