In an effort of standardizing the access Unique Device Identifier in different platforms,
leading mobile application research and development company WaveSpread Technology Limited (http://www.wavespread.com)
these includes, an update to Android OpenUDID which centralized all common ways of device identification, from Wifi Mac Address, BlueTooth, Android_ID to IMEI; which can be downloaded at : https://github.com/
a new Microsoft.Net and SliverLight version of OpenUDID, available at https://github.com/
and a Web Version available at https://github.com/
and both the Android and WP7 version has introduces a new concept of internal UDID / corpUDID which allow developers to conduce cross app behavior analysis but make the sensitive information useless for third parties
both version are available as open-source, free for commercial usage and developers are welcome to take part making them even better.