Sorry if I'm late to the party on this but Yahoo has filed for the trademark Yahoo! Go.

Live URL: http://go.yahoo.com/

Yahoo! Connected Devices – Settings

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Previous related blog post Yahoo Acquired VerdiSoft Mobile Sync Company (http://blog.searchenginewatch.com/blog/050727-090004)

Side note: Another new Y! trademark filing with new logo that's on Yahoo! Go's page. 3 transparent intersecting ovals overlaid by Y in a solid oval. Looks kinda MSN'ish