Mac Forums

i currently have Tmobile samsung galaxy s 4g, and am very close to switching to sprint to get the iphone 4s. I am a little skepticle.i was also pondering an Evo, but really want to try an iphone. I am so used to my android phone, BUT am tired of their crappy signal, slow speeds, and phone messing up. (apps foreclosing, phone freezing etc) will I have these problems with the iphone? Also my phone now has an external 16g memory card but also has some internal memory. Is the 16gb iphone 4s worth buying?im not really sure how big that is and dont know how many songs/movies it will hold.. (i download stuff but not like crazy). Also since the iphone is only 3g.... how is the service?? Any opinions on sprint or the iphone 4s would be greatly appreciated as I try ro make this decision. Thanks.