Logged into my Google Spreadsheets today and I was presented with docs.google.com, a rebranded front end for spreadsheets and word documents. It looks great, and I love the integration.
They took the My Active Documents look of Writely, and added my spreadsheets, calling it 'Browse Docs and Spreadsheets'. The look is clean and very blue, like most Google stuff.
I should have guessed they were going to do something like this. When I logged into Writely yesterday they had a big warning about a big upgrade yesterday evening.
Just saw the Google Blog post about the integrated docs and spreadsheets.