N900 - Maemo 5 (and others)
PPTP is a VPN protocol that is found everywhere, mainly because it is easy to setup in the Windows world. It may not be the best VPN out there, but there are lots of people would would benefit from being able to easily connect to their coporate network.
PPTP (and maybe others, like OpenVPN) should somehow be added to the Connection Manager. There should be possible for the user to associate a connection (GPRS, Wifi, etc) with PPTP so that it can be used in an easy manner.
Desktop Linux has it, Windows mobile has it, iPhone has it and Windows client also has it. It is about time N900 can have it, too.
Thread:
http://talk.maemo.org/showthread.php?p=481092#post481092