The genuine VAG-COM software is only available for PCs. However, there are similar alternatives. It looks quite cool, but I haven't tried it yet.
http://www.arlab.it/vc/screenshots.html
Then there are also handheld devices. I have the ones listed below:
http://www.memoscan.cn/en/showproducts.asp?Cid=12
http://www.auteltech.com/vag405.htm
http://www.vchecker.com/vchecker-vwaudi-reader-english-version-p-30.html
"They all fall within the price range of around EUR 100. The VAG405 is by far the most beautiful device, but unfortunately, it can only read and clear ECU information and fault codes, and a few special functions like resetting the inspection and oil service indicators. Both the VChecker and Memoscan seem to be based on the same hardware, and the software is also similar. The functionality is almost like VAG-COM, roughly equivalent to versions 3.11 to 4.09. They can't keep up with the current VAG-COM versions. Neither of them works with the RNS-E or BT FSE systems. Otherwise, everything I tested seems to work. However, they are useful for KWP1281-related tasks. If you're interested, I might be willing to part with the Memoscan."
Greetings.
Axel.