As widely rumored, the new iPad models (one for Verizon and one for AT&T) announced today will offer several varieties of high-speed cellular wireless networking. iPads sold for use with those two carriers, plus Rogers, Bell and Telus in Canada, will work with an alphabet soup of fast connections: the 3G EVDO and HSPA standards (also on the iPad 2) plus the newer HSPA+, DC-HSDPA and LTE standards. All three of the newer standards are speed demons when compared to the 3G technologies. HSPA+ tops out at a theoretical maximum of 21 Mbps download speeds, and DC-HSDPA can hit a s
