BB Curve 8350i :: 8350 Switch To 8530

after being a nextel customer for over 12 years i feel the issues with connecting etc have become too much of a PITA so i switched on a 30 day trial to the 8530 from Sprint. have to say that the first thing i noticed was the speed of online. I know nextel is not 3g but they are so slow. the threaded text is a neat option and in 48 hrs i have not dropped a single call. Gonna give it a few weeks to see how it works. Why dont they have a sprint/nextel hybrid blackberry? Dont think its asking too much to have a phone that just works plain and simple recently the 8350i is not that phone