So the TI-Nspire CX was announced all the way back in February, with indications it would arrive sometime in early to mid-April, but so far, we haven't seen it. When will it arrive? That's anyone's guess, but it has started showing up for pre-order in at least one location, Office Max. This color graphing calculator is incredibly impressive, but so far, Casio's Prizm is still the only color graphing calculator on the market. While the wait continues to drag on, you'd have to think Texas Instruments is frantically working to get the CX on the market to avoid the Prizm gaining market share. Stay tuned.