DGTeam firmware are for Netgear routers like - DG834GT, DG834PN, DG834N-V1, DGN2000, DG834(G)-V1-V2, DG834(G)-V3, DG834(G)-V4, DG834GTB (Annex B), DG834PNB (Annex B).
http://dgteam.ilbello.com/
Belkin, Linksys, D-Links and many others you should use DD-WRT.
http://www.dd-wrt.com/site/support/router-database
Its not official by netgear so I doubt it could be improved?