New renders of the phone have cropped up, and although it's not exactly a mind-blowing design, the rumoured specs under the hood could well make this phone one to watch out for.
Of course Qualcomm's 1 Ghz Snapdragon processor should make the phone nice and fast, and the large 4.3-inch WVGA capacitive touchscreen will prove a plus for internet browsing.
It's thought HTC Leo, which may only be a codename, will come complete with the updated and improved Windows Mobile 6.5 software, which will be a good or bad thing depending on your thoughts on WinMo mobiles.
The camera will apparently be a reasonable 8 megapixels, and it's also rumoured to feature Wi-fi, A-GPS, a 3.5mm jack and a MicroSD card slot to boost the 512MB on board storage.
All in all, a pretty interesting round up and one we'll be interested to get our hands on as and when it's confirmed by HTC themselves. Until then, it's another one for your rumour pile.