I noticed it's been a month since anything has been added to
http://handhelds.org/moin/moin.cgi/HTCApache .
Watching some of the other threads here, I'm willing to bet there are a few people here who could tackle the phone/data part of the phone and get something going.
I just wonder if there would be any real advantage to replacing WM5 with Linux other than 'sticking it to the man'.
It doesn't seem like there is a huge selection of apps to choose from, but any that are out there would most likely be open-source (Free)