> I thought BS 3.0 was supposed to have ulrapeer support, but i
> don't see anything like it in the alpha.

You must not be looking hard enough, because on the bottom left of the host tab... you can switch BearShare between 3 modes (Regular Peer, Client and Server).

Peer forces BearShare to run just like the 2.X series, Client forces BearShare to run as a shielded leaf node and Server forces BearShare to run as an Ultrapeer.