Recently, many software houses have begun offering components(used in their applications) to third-party developers(take Resco as an example). The US-based company PhatWare has decided to follow suite by offering its OTA-updating utility to developers:
PhatUpdate SDK for Microsoft Windows Mobile offers an easy and convenient way to provide updates for installed software products and offer additional products compatible with the user’s device. In addition to product updates, the application can also be configured to offer trial versions of other 1st and 3rd party software and provides links to download and purchase the software directly from the device. The SDK includes royalty-free redistribution license, one year maintenance and updates, and two hours of engineering support via phone or email.
The system will work on touchscreened and touchscreenless Windows Mobile 5 or 6 devices. Purchasing it(599$) entitles you to 2h of free tech support and unlimited distribution rights(aka you can use it in all your apps, forever). Additionally, you are entitled to free updates for one year after your initial purchase.