the only way to delete bloatware is to Root the phone then i recommend pay for the pro version of titanium,use it to backup the phone,you cannot delete all the pre installed Apps,but some you can i found that the twitter app,poynt and the virgin mobile apps can be safely removed,but any google apps you should leave alone.as for updates i can not answer this,i am pretty sure if you root and go custom Rom route you will not be able to get updates,also rooting a phone voids the warranty.