No, it's a pretty good topic for right now - it's only the second time I've seen it mentioned in this forum since the EVO came out.
Strictly speaking, Sprint 4G is a marketing term applied to WiMAX and WiMAX is intermediary between 3G and 4G where G stands for nothing more than "generation."
The real deal 4G is uses packet switching technology. And if anyone liked the old X.25 protocol, they're going to love 4G.
Wait. No one liked that outside of IBM. It essentially is a very efficient cloud-based protocol - and it works by kinda homogenizing all traffic into neat little packets. It was overcome by the routing protocols common to what has become today's internet. (In fact, I'll bet there are very few around here who have even heard of X.25.)
But - mobile faced the same challenges for moving data over the air as over wires in the days of dinosaurs, so 4G was planned.
A different branch was taken by the WiMAX crowd and as soon as working groups starting working on it, it became controversial in the semiconductor industry press as a kinda fragmentation to what everyone else was considering building.
And WiMAX has beaucoup in common with wifi - the biggest differences are in its long-distance capability and the quality of service measures it uses (appropriate to a wide area network as opposed to what wifi employs for a local area network).
I see a lot of people in a lot of forums chortling over dumb Sprint users not getting real 4G, and all I can say, remembering X.25 is: be careful what you wish for.
I rigorously object to that sort of comment!!! Why, I... Wait. What?
Anyway - thinking of X.25 was way more more fun than thinking that this thread has actually made it into two pages, so I thought I'd help you out.
After all - this thread has no real purpose, so it is unpossible to be off-topic here, now isn't it?
Happy 4th, CD.