Bestbuy is one of the retailers.

Abhishek does need to leave AT&T if he wants 3G everywhere...as referenced by the iphone 3G speed experiences being reported in various blogs.

If he doesn't need 3G, then why switch. but then again, why get the device in the first place. :-)

AT&T's tower might be capable of 7 mb/s, however you won't come anywhere close to that....why you ask instead of blatently believing the marketing hype for twitts?
1) they don't have the T1's or backhaul at the tower to support it.
2) you aren't directly under the tower, with no callers making voice calls on the tower
3) you must pray that your device actually supports those speeds
4) And finally, you hope that you are of those lucky souls who actually have 3G coverage from AT&T given that their 3G footprint is less than 50% than that of Sprint's

Maybe crossing your fingers would help also. But heck, I guess I am just a realist and expect my 3G to work everywhere (not in select areas).

jobs, you need a faster network and better devices to compare the iphone too.

Using my pre-launch HTC Diamond on Sprint, I just loaded the national geographic site in 9 secs!

Can't trus it...
ok, anyone else see the sublimal message here beyond the marketing banter?...WHY would AT&T offer crappy wifi service, free, to their aircard users unless they are using it as a COVERAGE SUPPLIMENT! (can you say t-mo redux)? Compare their multimegabit broadband coverage to Sprint's - it DOESN'T compare.

Anyone, who has used a Aircard from Sprint or Verizon, in most reasonable cases with rational non-fan-boy objective opinions, would attest that aircards used in hotspots are much faster (sustained speeds) than the wifi itself. I know it is counter intuitive, but those wifi spots suck. VPN clients are hit and miss, throughput is hit and miss, but the aircards always seem to be rock solid.

Don't believe the hype! Get up and get get down their mobile broadband is joke in yo town.

I am calling BS on this article, for three reasons:
1) In order for an aircard, on AT&T's network to get 20 mb/s, they MUST FORLIFT ALL BASESTATIONS and replace them with HSPA+ (the next version of HSPA with MIMO which requires all new hardware). Since they have not guided the street with incremental CAPEX spend covering these forklifts, the 20mb/s was mis-spoken. I suspect they were saying 20mb/s per cell site (aggregrate throughput = 7mb/s per sector and 3 sectors at each site = 21mb/s which is realistic, under ideal conditions for HSPA), but your handset/aircard can only get 7 mb/s, under these ideal conditions, no one in that cellsite has a phone call, you are standing/sitting still, no humidity in the air, the wind is blowing from the south and you don't fart, yadda yadda....

2) They are not putting backhaul to support 20mb/s again, cause they have not guided the street with incremental CAPEX / OPEX to support the fiber backhaul needed for 20mb/s.

3) All one has to do, is look at Clearwire who is pulling fiber to support these speeds (and faster) and their CAPEX / OPEX projections. AT&T would need similiar expenditures (albeit not exactly the same due to difference in frequencies).

But, hell, I've been wrong before. :-)

Great Blog - i visit it daily.

The new site enhances the already good organization of engadget. However, the site loads slowly and text jumps all over the place when I mouse over comments - it is very distracting.

Well, have fun with your "global phone", wifefly phone while traveling in Korea, parts of Asia, and South America. Can you hear me now?

@Rich

That's where Sprint is nicely positioned...People usually view WiMAX / Sprint as a technology choice...What they overlook is the spectrum issue which you, cleverly, bring up:
a) East / West Europe is deploying 3G in the 2500 bands (news flash: that's Sprint's bands in the US
b) UK is beginning the auction process for 2500 both TDD and FDD (translation: WiMAX in 2500 in UK, LTE in 2500 also)
c) Asia and India are already deploying 2500 WiMAX (and 3500 also)

Sprint's bands are well positioned...Most in the 4G circles believe WiMAX / LTE dual mode devices will be available - to account for WiMAX deployments today and LTE forecasted deployments in the future.

A friend of mine has a qchat alpha phone and they can't stop raving about the service. They let me try it and i was very impressed. They also said that PTT has supplanted some their sms and speedial use...witnessing it, it's just much faster than typing or waiting for the phone to connect.

after seeing it, I want it on a Windows Mobile PTT phone.