Despite my previous post only one feature (the Coverflow enhancement) for the new EyeTV 3 would require Leopard.
All the other new features will work on 10.4.11 according to Elgato.
After a period of reflection, I quite like the idea of the enhanced editing, the current tools are the best I have worked with on any TV recording system, so have them even better will be great.
Wi-Fi Access is one of my favourite features of the current version of EyeTV, the enhanced version with version 3 sounds useful if you have a new wifi phone.
Overall there are some really good features in version 3, however with the way I use EyeTV on my iMac I can’t see myself upgrading, if I upgrade the Mac mini under my television then I will get the new version.