The HTC Desire HD (codenamed: "HTC Ace") is an Android smartphone by HTC Corporation. It was unveiled at a press event in London hosted by HTC on September 15, 2010, and was made available for sale in October in Europe and in January 2011 in Canada. The Desire was HTC's fourth flagship Android device until the release of their new line of flagship model, the HTC Sensation. Hardware The smartphone has an aluminium unibody design with Android 2.3.5 (Gingerbread) and HTC Sense installed. On the back, there are two plastic covers, one contains the battery, while the other contains the SIM card and the microSDHC card. It features a 4.3-inch gorilla glass WVGA TFT LCD capacitive touchscreen, 8-megapixel camera (can record 720p video) and support for HSPA/W-CDMA and quad-band GSM/GPRS/EDGE. It is the first phone to use the new 1 GHz MSM8255 Scorpion CPU. This second generation Snapdragon processor uses a low-power 45-nm process technology for higher integration and efficiency, and the Adreno 205 doubles the performance of the Adreno 200 GPU. This allows for longer talk and standby times than the original HTC Desire even with a smaller capacity battery. The HTC Desire HD has 768 MB RAM and 1.5 GB of internal flash memory data storage. There is also a single microSDHC slot, which can accept a microSDHC/XC card with a capacity of up to 64 GB of data storage. Software The HTC Desire HD incorporates Dolby Mobile, Sound Retrieval System WOW Surround Sound, DLNA, Adobe Flash 10.2, and DivX/Xvid video playback support, however, not many audio codecs are supported and apps have to be downloaded in order to support more formats. At launch, HTC unveiled the updated HTC Sense features, including a new web site that allows remote interaction with HTC Sense enabled handsets for backups, security features, and other handset interactions. For example, it can remotely lock and wipe the handset of all sensitive data, while the service also creates automatic backups of contacts, text messages, call history, customizations, etc. HTCSense.com will also send commands to the handset to set the ring volume to maximum volume even if it is on silent mode and give a location on a map. The new HTC Sense brings some enhanced multimedia abilities giving users more options to create and share content (including new photo and video effects). It also includes location-based maps, which can be pre-loaded or cached and