Can I use this phone with Boostmobile service?

is it possible to buy a black berry or a different smart phone from sprint or verizon and use a boostmobile service. I dont like the boostmobile blackberry curve but i want the service. I currently have metropcs but it sucks so i want boost. how can i buy verizon phones or sprint phones online and use a boostmobile sevice?|||No Because Evev Though Boost Is A Part Of Spring It Uses IDEN Technology And Sprint Verizon Uses Cdma.. Have You Tried Cricket Or MetroPCS? They Can Use Any Phone From Verizon Or Sprint