DivMod

ASP service - WebMail, VoIP/SIP, etc. - looks like have PIM service - GroupWare?

http://www.divmod.com/About

main guy Amir Bakhtiar

use Python/Twisted Matrix

driven by Open Source projects they run: ATOP, Sh Toom, Nevow, LuPy/Pyn Dex, Quotient, Reverend

http://www.divmod.org/Home/

hey, they're in So Ho NYC!