No matter how quickly a document is 'pulled', being online for just minutes gives someone the chance to jump on it. This being the case with promotional material about the HTC Mozart, a Windows Phone 7 handset that looks to be coming our way soon.According to TechRadar, the Orange network seemed to accidentally publish part of a help guide online, while Phones4U stuck up some promotional material about the phone - the latter being captured by Engadget as evidence of its existence.So what will the Mozart offer? A classy name, that's for sure. But there's also a 3.7-inch WVGA screen, an 8-megapixel camera and Xenon flash, 720p recording, Bluetooth 2.1 with A2DP, Wi-Fi, FM radio and a 3.5mm headphone jack.Phones 4U had it down as 'our first Windows Phone 7 device' and the only one its planning to range this year, which makes you wonder where all the other promised handsets have gone? We will no doubt find out at the big Windows Phone 7 launch - that's scheduled for 11th October.