This GE 45852GE dimmer light switch allows you to remotely turn lamps on and off while also controlling the brightness. The switch requires no wiring for easy installation, and it is energy monitoring enabled for an energy-smart home.
The GE Plug-in smart dimmer is exactly what I was looking for: an easy way to use existing or specialty bulbs (such as incandescent or LED based Edison style bulbs) alongside the rest of my connected bulbs using the Philips Hue bridge (it's all ZigBee, it should work!).
After cycling through every single wireless channel with attempted touch link and force pairings (even resetting the GE dimmer to factory defaults and trying again), I couldn't get it to link up to my system. Upon further research, I discovered the GE dimmer uses the Zigbee Home Automation protocol (version 1.2), while the Philips Hue system is only compatible with ZigBee Light Link (not sure what version). It is simply not compatible unless Philips upgrades their system to ZigBee 3.0 and implements the combined ZHA+ZLL protocol. I hear the hardware is compatible, it's just up to them if they want to or not...and given their current stance on third party expansion, it seems unlikely to happen.
Philips Hue users: look elsewhere, this won't work for you.
Everyone else: no idea if it'll work or not.
Three stars for a lost evening of futile troubleshooting and poor clarity regarding what "ZigBee compatible" actually means.