We are travelling the the USA in April visiting LA, LV and SF (two weeks). The family has a mixture of Telecom (HTC One X) and 3 Vodafone NZ smart phones (HTC Desire X). To avoid roaming I am looking at getting a bunch of prepaid SIMs in the US. Only the One X really needs data. Is this possible on one network there? And, if so what is the best way to go about it?
I am aware of this being asked previously, a search bringing up the following threads
http://www.geekzone.co.nz/forums.asp?forumid=11&topicid=274
http://www.geekzone.co.nz/forums.asp?forumid=11&topicid=7127257
but they are at least a couple of years old.
I found an outfit called ready sim
http://www.readysim.com/
has anyone had any experience using them?


