On our blog post Smart Home Communication Protocols we mentioned Insteon:
"Insteon (Powerline and RF) – Insteon was created by SmartLabs, the same company that owns the home automation website SmartHome. Here is a link for a great overview for How Insteon Works. Insteon devices are backward-compatible with X-10 devices."
To control the Insteon LED bulb with a web-enabled phone, you will need the Insteon SmartLinc:
"Control any INSTEON compatible device with any web-enabled phone or PDA . SmartLinc puts the power of managing your entire INSTEON home automation network in the palm of your hands."
If you don't need to control your light wirelessly, check out some of the other screw-in A19 LED bulbs.