Makes the transitions from a to b to g look painless. These guys get the midlle of a doughnut from me until a standard is certified and the hardware is tested and it actually works at something reasonably close to the speeds and reliabilitiy claimed. Still have occasional problems with compatibility of adaptors/routers/access points among diffent vendors for b and g and this is years AFTER certification. Not interested in paying for the privelege of getting shafted.
proprietary G enhancements
Real-N (what are they going to call it when it finally happens?)
I'm waiting for Real-N, once they've got all the bugs and interoperability issues worked out, and they produce a product that won't destroy nearby G networks. G (heck, even B) is good enough for most laptops. Even in some new construction this summer I'm putting in G APs.
Then I'm waiting for Tom's Hardware to review the APs. 8*)