LiquidTWI2 is a nice update to the LiquidTWI library.

I have released LiquidTWI2, a lean, high speed I2C LCD Library for Arduino. This library is an extension of the great work done by FalconFour on his LiquidTWI library.  Notable additions to LiquidTWI:

• support for Arduino 1.0+
• support for Adafruit RGB LED Shield (MCP23017-based)

LiquidTWI2 also supports the Adafruit I2c Backpack (MCP23008-based) in I2C mode.  The library is a drop-in replacement for both the Adafruit LiquidCrystal Library (for the I2C backpack) and the Adafruit RGB LCD Shield Library.  By replacing either of Adafruit’s libraries with LiquidTWI2, memory use will decrease, and writing to the LCD will become blazingly fast.

Pick up an Adafruit RGB LED Shield here.