Ethen's comments were very good. I also recommend focusing on your own network solution and features - you will have limited developer resources anyway and getting your unique ideas to work well is more important to the long-term success of your client than the possible initial advantage of a hybrid system. P2P communities are nowadays able to move quickly to new clients, and if your client has some really cool features it will be easy enough for you to get people to hear about it. It will also be easier for you to address and fix scalability problems if the user base grows steadily instead of explosive growth.
- tg
