[arrrghhh]

Yes, as the previous post said they're working on USB but it's not supported currently.

You can hit the back button until it closes... I wonder what the "proper" way to close the browser is. Most apps you can hit back and it'll "hide" the app - and the system will automatically close it if it's not needed... but the browser, if you've gone several pages in you have to hit back a lot to 'hide' it.

USB tethering, no. Wifi tethering, yes.

I guess I shouldn't say USB completely doesn't work, there is always ADB. It's a little tricky tho.