This is a great first step but a long way to go!
As I write this, there is a clear momentum behind the Web.
By Web, I mean Open standards which include browsing, Widgets, RSS and so on. See Rich Web clients for a more complete definition of thin clients.
Like many others, I have been a huge fan of Widgets and especially in their potential to bridge Web and Mobile Web applications.
This development overcomes the problem of Widget fragmentation.
Watch this space!