MetaPhys of Japan has improved upon the traditional electrical outlet in every way.
First, there's the handsome soft-edged square faceplate design, with a subtle LED light glowing underneath revealing when power is on and available. The dual grooves face looks great, but the utility the design offers is more impressive: dual prong plugs for electrical devices can fit in from every angle, offering the capacity of a powerstrip.
The disappointing catch is the Node Power Outlet is only available in Japan, compatible with non-polarized electrical systems and non-grounded plug equipped devices (note the absence of anywhere to accommodate for a 3-prong plug). The design is specific to Japan's electrical grid and standards, but can be appreciated as an elegant looking and working solution which I hope one day translates over to a US-compatible version.
(Images: MetaPhys of Japan)