So there are a lot of reasons I've been planning to start blogging. A short summary:
1. for my records, like a journal. But why not just keep a journal?
2. the knowledge that others could read this will encourage me to organise my thoughts - similar to the teddy-bear solution, simply arranging my ideas for the consumption of others should make them clearer to me.
3. I think I can share information that will be useful to others, mostly around windows phone and my app development process.