So long as weâ€™re talking about WiMax, Sprint is going to be ramping up their WiMax network in the near future, Chief Financial Officer Paul Saleh claiming ten times cost performance, which means they can build and maintain the network for hella cheap. Bottom line? Lower data rates for us end-users, or at least those of us rolling with Sprint. Also coming through the tubes is push to talk on Sprint. The carrier wasn’t doing so hot earlier, but between PTT, unlimited data and WiMax, Sprint’s definitely still in the game.