@ tarun...
my suggestions for ur rom...
1. focus on batt. life
2. include supercharger and some tweaks frm xda..
3. fr launcher use go launcher ex
4. fr theme use miui theme or orion theme
5. include theme n wallpaper chooser
6. i dnt knw wats deodex, bt seen many using it and many demanding it.. so if u can, deodex ur rom..
7. include franco kernel
8. i will suggest dnt go for pure cm7 based rom.. see how andy from xda doing...
9. for many users of cm7 the gps is not working.. make sure dat urs gps works perfectly, this way many will be interested to try ur rom..
10. make sure the basic needs for a user is working perfectly in ur rom before releasing it..
will suggest u more later. i will really love to do dat.. we r all here for u.. so jst start developing.. we will follow u