Fierce Wireless has a report on a dispute between Sprint and Clearwire Corp. over who gets that extra bit of money Sprint's 4G phone customers pay. Clearwire is building and runs the 4G network on which Sprint's fastest service operates. The service costs an extra $10 a month for Sprint customers who have 4G-capable devices, currently the Evo and Epic handsets. The disagreement, according to the Fierce Wireless report, is over the extra $10 a month coming in from Evo and Epic subscribers in markets where Clearwire has yet to lauch its 4G WiMax coverage. read more