In case anyone might want to play I've uploaded an alpha version of my BlogSmart application. This is a .NETCF (Compact Framework) application that will allow you to create posts from your Windows Smartphone.
Give it a whirl at http://www.0gravity.co.uk/ and let me know what you think. As I said it's still in alpha phase but I would appreciate any and all feedback.
You will probably require an application unlocked smartphone as my program has not been "signed".