NYC

Regardless of how you might feel about the  potential  dangers of electromagnetic radiation, it came in mighty handy today -- identifying this brand-new Sony S2 tablet headed to the USA. The FCC recently got a glimpse at Sir Howard's dual-screen Honeycomb clamshell, and thanks to the public portion of their reports, we've got some crucial specs: the Sony "SGPT211US" will sport 2.4GHz 802.11 b/g/n WiFi, Bluetooth, and most tellingly, 850MHz and 1900MHz 3G bands suggesting a launch on AT&T. Now, those frequencies are certainly also used by several prominent Canadian carriers, but it just so happens that this particular model tested is a US variant -- with others designated for Canada and Japan -- and this particular cellular module is the Ericsson F5521gw, which means we could even be looking at 21Mbps HSPA+ speeds. Before you start speculating, however, there's one more crucial spec to share: the prototypes apparently have a removable 3080mAh lithium-ion bat...

It'll be a little while before Windows Phone 7 Mango phones pop up in the shops, but here at Computex, Acer decided to give us a little tease with a mockup of its upcoming W4 handset. Before you get all excited, though, the hardware specs are pretty yawn-inducing: there's a 3.6-inch 800 x 480 display of unknown type, 1GHz Qualcomm MSM8255 CPU, up to 8GB of storage, 5 megapixel auto-focus camera, and DLNA support. Hardly anything new here, which is a surprise given that we're looking at a Mango device -- a phone to be shipped with a  major  WP7 refresh. Anyhow, you'll also find the usual radios like 802.11 b/g/n plus Bluetooth 2.1 here, but interestingly enough, it looks like the W4 will be coming in two SKUs: one with HSPA 850 / 1900, and one with HSPA 900 / 2100 -- obviously a potential problem for globetrotters. As for look and feel the W4's well within the comfort zone of Acer's smartphone ID, and the curved back felt nice and solid in our hands, but we sh...

As always, the FCC continues to tease our gadget lust with another upcoming smartphone. This time we have the HTC Sensation 4G, aka PG58100, which is believed to be launching in early June and will ride on T-Mobile's very own AWS waves. Frankly, the label above is the only interesting eye candy you'll find here as the lab photos remain hidden under HTC's confidentiality request, but it's not like we haven't seen the 1.2Ghz dual-core in its full glory before. What remains uncertain is whether T-Mobile's offering will come with Sense 3.0 -- the carrier has a habit of delivering vanilla Android devices these days, like the G2 and G2x (though the latter's from LG). Place your bets now, our operators are standing by. Android Central FCC

AT&T has been adding a little dash (and asterisk) of 4G to all its phones as of late, but not all of those handsets are created equal -- the Motorola Atrix 4G, HTC Inspire 4G and HP Veer 4G are technically capable of only HSDPA Category 10, which equates to maximum download speeds of 14.4Mbps. Not so for the new Samsung Infuse 4G, as it's been boosted to HSDPA Category 14, which bumps its particular flavor of 4G up to 21Mbps. That has AT&T playing in the same arena as T-Mobile, assuming that your local cell towers have the fiber backhaul in place... and assuming that T-Mobile doesn't make good on promises to deliver some 42Mbps (HSPA+ Category 20) handsets before AT&T catches up. And yes, the uploads should be fine, too -- AT&T says the Infuse 4G supports HSUPA Category 6, which should give us maximum rates of 5.76Mbps when firing files into the clouds.