Things I would like to buy from the marketplaces
A tutorial or two based on Linux CentOS, not ubuntu. Ubunto may be great for a desktop PC and GUI , but most of the Virtual servers in use around the world run something that is good without a GUI . Like CentOS. So how to set up MySQL – I know how to type “yum install myqsl” and it does it, but you need more than that to get it to work. How to get it to install PHP5 .3 when “yum install php” gives you 5.2. Linux autoexec.bat, well rc.d and so on. There are thousands of people running Linux virtual servers now, and there must be a market for tutorials for them. All the books seem to work on you using a GUI and not putty.
A HTML5 audio player that can cope with streaming MP3 /AAC+ (shoutcaster)
Financial info downloading or portfolio valuation apps
There was a burst of Android apps but one that (like the HTML5 ) that can cope with playing a streaming feed would be great. There are a couple for iPhones in the market, but none for Android.
I am working on the command line guide.