I am sure I am not the only one who has run out of sensor ports before on their NXT.  Well now you need not worry about that problem anymore.  HiTechnic brought out their long-awaited Sensor MUX today.  It’s not just a port splitter but it also takes care of polling the sensors for you, so it will work with I2C and analogue sensors.  You can have up to 4 of these SMUXs connected to your NXT in all.  The following sensors are currently supported:

• Analogue (EOPD, light sensor, gyroscope, sound sensor)
• Lego Ultra Sonic Sensor
• HiTechnic Compass Sensor
• HiTechnic Colour Sensor, both the new and the old one
• HiTechnic Accelerometer Sensor
• HiTechnic IR Seeker Sensor, both the new and the old one

I’ve had the pleasure of owning one of these beauties for a few months now, so I could work on a ROBOTC driver for them.  I will be releasing a new version of my suite later today, so keep an eye out on the project page.