I recently got an invite to Pownce and created my account. It is nice, very clean, and easy to use. I have already added family and friends and started to transfer files around. Pownce has a desktop application that works like a chat window that runs on Adobe’s AIR technology.
It is running very nicely on my Mac, I am having Flash [Player] 9 issues with my XP box; but that could be because I am behind a corporate firewall. I am currently trying to get someone else to run the desktop app., since I no longer have a WinBox at home to test.
So, far, it I like it.
Oh yeah, I am waiting for more invites [grin].