@ChessMaster
I once wrote a Windows Mobile app in C#. However, it was a specialized application for a single client rather than general-purpose mass market software. Windows Mobile is still a small market though - although that might change going into the future. Until that happens, I am rather disinclined to invest in it.
On a different note, I have mulled over a couple of ideas on how Kenyan app developers can make money in the absence of accessible app payment mechanisms. One rather interesting way would be to adopt the so called
Pay What You Want (PWYW) pricing system.
In PWYW, you let people download your app for free but ask them to pay you, by any method of their choice, whatever amount of money they think your application is worth. That amount includes KES 0.00. If your application is sufficiently useful, you might get a couple of people sending you some cash for it. However, some may say that knowing Kenyans, this is a rather far-fetched strategy.
You could enhance this strategy by adding a charity rider to the proposition. Say you promise that 30% of the money raised from the app goes to support some worthy cause of your choice. If you wisely choose the cause, get the right NGOs to support and you have a killer app, you might be able to generate sufficient publicity to attract the numbers you need to make some decent cash out of your creation. That and the fact that it is such an elegantly win-win situation. Just thinking...
Learn first to treat your time as you would your money, then treat your money as you do your time.