-* [OpenAlt](OpenAlt/)
-was Bdale's original project here, a dual-deploy rocketry altimeter. One
-prototype was built, but never flown. This project is now indefinitely on hold.
+* [TelePyro](TelePyro/) is a companion board for [TeleMetrum](TeleMetrum/)
+that adds 8 additional pyro channels.
+
+* [TeleScience](TeleScience/) is a companion board for
+[TeleMetrum](TeleMetrum/) that adds 12 channels of thermistor or generic
+analog sensor input, and 5 general purpose I/O lines.
+
+* [TeleShield](TeleShield/) is an [Arduino](http://arduino.cc) radio shield.
+
+* [TeleTerra](TeleTerra) is a hand-held ground station for use with
+[TeleMetrum](TeleMetrum/) and [TeleMini](TeleMini/).