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 shall save our final judgement for the real deal. When we hear a release date, you'll know it as soon as we do.