Mary Jo Foley, who is pretty reliable, has some information to share about the coming updates to Windows Phone 8.
She reveals that Portico was the first GDR ( General Distribution Release), which is the name for an update that will be pushed out commercially.
After that there will be GDR 2, which was recently revealed by the leaked HTC Tiara, and which should be done in the next couple of months so that it can be preloaded on new Windows Phones coming this spring/summer.
After that will be GDR 3, and finally after that Windows Phone Blue.
Of Windows Phone Blue MJF writes:
Windows Phone Blue is the Windows Phone OS update designed to bring the Windows 8, Windows RT and Windows Phone 8 app models and developer platforms more into sync. Supposedly the Windows Blue update includes new programming interfaces, kernel updates and some user interface enhancements (though nothing too major on the UI front, I’ve heard).
This update is set to arrive on Windows 8 and RT tablets before it will hit phones, and may go into beta this summer on those devices.
We do not know what the updates will bring, but we do know from job postings Windows Phone Blue will bring updated apps, while the GDR releases will likely be small features and bug fixes.
MJF reports that Greg Sullivan, head of Windows Phone, has reassured users that all these updates will be coming to all Windows Phone 8 handsets.