im pretty new here so sorry if everyone knows about this already but i just found out 3 days ago: http://witendofi.com/?r=undyingforce make sure you use that link and register, its free!!!! you wont regret it!!! plus i get some recegnition points for refering! its where i got my metroid sig. this is a great community for Nintendo DS Wi-Fi users "WiTendoFi has advanced stat tracking (on players and the servers), community forums to talk it up with all the other WFC users and to share your latest exploits online, WiFi Cards that let you show off your friend codes, and gaming hubs that give you up-to-date information about the wi-fi games you play." they even have live chat rooms where you can get games going in real time. i came across this site when searching for NDS homebrew games hope you guys like it
