We are the developers of TeamViewer (www.teamviewer.com), a tool for instant remote control and remote support of computers over the Internet.
TeamViewer is fully free for non-commercial users, and it would be possible to make it portable in the sense that is meant here, so e.g. that TeamViewer leaves no traces in registry.
We also offer commercial versions that are very often used by our customers from a USB stick etc., for example to contact their home pc while they are travelling or are at remote locations.
So in our opinion it would make sense to host a portable version of TeamViewer here, because I think there are no remote tools in the PortableApps Suite yet.
Would you be interested in TeamViewer here?
If I'm completely wrong with this request here, please don't consider this posting as spam, it was meant as an offer and we might also give (free) support on integrating TeamViewer into the PortableApps Suite.