Welcome to xda-developers.com
This site is about certain PDA-phones, made by a firm called HTC in Taiwan. Their makers named them 'Wallaby', 'Himalaya', 'Blue Angel', 'Wizard' and 'TyTN', but almost nobody knows them by those names. The mobile provider O2 sells them under the brand-name 'XDA', and that's what we had in our hands first. They're also known as Qtek, MDA, SX-56, Hermes and many, many other names.

Since we develop software for it, we need information, and nobody seemed eager or ready to give us what we needed. So we 'reverse-engineered' the devices, found a lot of information, and shared it with the world. But as our site grew we realised that lots of ordinary users were also suffering from a lack of support. They started using the xda-developers forum to communicate and before long the forum was as much a user forum as it was a developer forum.

We hope that you will enjoy this site and find it as useful as we do. We encourage you to donate or otherwise support this site. Of course absolutely all proceeds from donations will benefit this community.