Windows Phone 7 lacks backward compatibility, which means any users migrating from Windows Mobile to Windows Phone 7 will have to give up their legacy apps.
The question arises if this is a real issue or not. I have some real concern, as my oldest app is Phatnotes, last updated in 2008, and I use it for work every day. With Windows Phone 7 not even having a native SQLite implementation and Phatnotes not making any announcement about their support for Microsoftâ€™s new OS there may be a pretty large gap before my mission-critical app becomes available.
eReader, another app I enjoy, is even older, having last seen an update in 2007. With my existing library being tied up in their DRM, the absence of their great software would put a dent in my enjoyment of the platform. In the case of eReader however I believe many apps will instantly take its place, but of course this will not help my old library.
My last bit of abandonware is BeyondPod, which was last updated last year but is still the best Windows Mobile podcast application. Again however I believe this application should soon be replaced by a Windows Phone 7 app, but I am concerned this application wont allow easy scheduled downloads over 3G like BeyondPod does.
What is the oldest application on your smartphone? Vote in the poll and let us know in the thread below.