I guess then it would help to know what you mean by "movie", "gaming", and "telephony". Telephony to me, sounds like you want some sort of cell phone thing. In that case, the movie and the gaming part is going to be fairly limited. But for example you can get an Archos portable video player with like a 160Gig drive which will be excellent in movies but not have the rest. For gaming, maybe a nintendo DS or playstation portable will get the job done and also do limited movies but then you won't have telephony.
I have a Verizon XV6700 which is basically a PDA phone. It's great as a phone and surfing the internet while also doing mapping and gps (doesn't have a good built in gps so it's best to use an external one) with that. Gaming wise you can play anything that will run under windows mobile (aka Win CE or PocketPC).
Of course all the recent buzz was around the iPhone recently which is also ok but again the movie and the gaming will be limited.