WPDang today reported that Microsoft is planning to merge Windows Phone and Windows Store developer accounts into single Microsoft Developer account. Also instead of paying developer account charges to Microsoft separately for Windows Phone and Windows Store accounts, you can pay it through single payment. WPDang reported that the Microsoft developer account will cost $19 per year. I think this pricing should attract more indie developers to try Windows platforms.
Even though Microsoft is merging the developer accounts in the near future, merging the actual Windows Phone Store and Windows Store will happen only next year.