Sync Dropbox with Google Docs

I saw this feature at Syncplicity
http://syncplicity.com/Tour/SyncWithG...

it reads:
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Sync with Google Docs
When you associate your Google Docs account with your Syncplicity account, you also pick a folder on your computer that will represent your Google Docs account. The two will be linked.
This means any document created in that folder will appear in Google Docs and vice versa. Changes you make to documents in either location will automatically sync back and forth.
Use your favorite desktop word processor to view and edit your documents when you’re offline and they’ll be automatically synced back to Google Docs when you come online.
Or use Google Docs’ sharing capabilities to collaborate on your documents that way. You no longer have to choose between one or the other.
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a movie demonstration: http://syncplicity.com/Video/Overview...

What do you think? any chance implanting something like this in the future?