Finally improving on the lack of third-party app integration capabilities and previous issues developers have had with Windows Phone development, Microsoft showed off at MIX11 its new developer platform which is set for release in May.
New features include:
This should entice many more developers to create apps for the Windows Phone Marketplace, as the previous dev kit was not enough to create the apps that designers wanted. Microsoft showed off several demos from popular companies whose apps are nearing completion. Amazon demoed their barcode scanning capability and Qantas was able to use live tiles to display current flight status.
Many fixes and performance boosts were also made. In total, over 1500 APIs were added including SQLite database support.
Head over to Engadget for more detail and the full press release.