if i have the 4.3.5 and the 5.16 bb and if i flashed my iphone 3gs with the ipad bb would that unlock my phone and will i need to add any programs in cydia??
That will do the trick. Just remember that unless your phone is old bootrom, the 5.0 jailbreak is currently tethered. Also with iPad BB you will break the GPS, and likely lose location services at the moment.