"the iPAQ units mentioned above have the ir built-in, along with a nifty software package that lets you separate it by room....neat stuff "
Yes, that's the Nevo software. I have that on my Ipaq too. I've used it exactly 0 times. Why? Because the IR on the Ipaq is weak and because I don't use line of sight IR remotes on my hometheater anymore. The Xlobby client/server method works much better IMHO.
BTW, their new ppc/remote looks like the BOMB!!
http://www.mynevo.com/Mynevo/Home.aspx
I've though about buying one just to use Xlobby on, but I don't know if it can just soley be used as a PDA.
hjackson