BlinkM MaxM is a higher power version of ThingM's BlinkM. It comes in a two part form factor a top card with emitters (apparently 15 individual LED cores worth) and a bottom card for power and control. It has the same I2C connections for digital control as the BlinkM and also includes analog inputs that switches or pots can be connected to for standalone control.
I have really enjoying using the BlinkM for various applications and look forward to using this bigger brother.
$24.95 from Sparkfun Electronics