While there will be apps available this summer certified by Apple to run on the iPhone, Fring let's you chat and do VoIP calls incl. Skype and all the other major ones now. How to install it on an "open" iPhone can be read here. Also watch the video.

Today I received a Skype chat answer from one of our clients who was using his Nokia E90 Communicator phone. He said he is in his son's school listening to the Christmas concert while chatting with his Skype buddies. I guess my wife would have an issue if I would do that, but that is another topic. He said it worked very well. Of course he has to wait what this all costs once he receives his mobile bill end of the month but Fring, the company whose software he downloaded onto his smartphone, seems to do an excellent job. I am tempted to try it out now too, of course only while at work and not from private events.