https://paybycoin.intuit.com/

Announced yesterday - I've not yet seen a thread on this development. Quite frankly, this seems huge to me. Intuit's QuickBooks is the overwhelming leader in bookkeeping and accounting software for small businesses. It also powers the Intuit Point-Of-Sale system, which is a widespread cash register and inventory system for many many small retailers. Integrating one-click Bitcoin payments into this platform is massive.

Granted, this is only for their Online version (not the traditional installed application). But that integration may soon follow.