Yes
You can unlock virgin mobile using codes that can be purchased from Simpleunlocking.com
You can unlock Virgin mobile to O2 using codes,., you can purchase such codes from any vendors online like OnlineGSMunlock.com
yes you can put a boost mobile SIM in because the run off the same network. You could also use ISIM, VIRGIN MOBILE, ect.
no no
no
No. The Samsung Infuse is only for AT&T, but it can be unlocked for use with other GSM carriers. Since Virgin Mobile is CDMA, it's not possible to use an infuse on Virgin Mobile.
Provided it's been unlocked from t-mobile's network - yes. Virgin mobile will supply their own SIM card for your account. You could either get a new number or migrate your existing number from t-mobile.
No. Virgin Mobile is part of Sprint, although I have heard that Virgin mobile necessarily has the exact same coverage as a Sprint customer would have.
no you cant
Yes they do.
What definition of unlock? • Unlock a locked sim? • Unlock the phone for use with T-Mobile
In the usa virgin mobile uses the sprint pcs network and everywhere else it uses the tmobile network