Programming a Wearable Android Device article tells that Dr. Dobb’s reviews an alternative to Google Glass and goes through the steps of coding your own Android-based Heads-Up Display in Hacking for Fun: Programming a Wearable Android Device article.
Hacking for Fun: Programming a Wearable Android Device takes a look at Recon Instruments’ MOD Live Heads-Up Display and the ease of creating and programming useful, on-person computing devices. By tucking their 428×240 pixel WQVGA heads-up display in the lower right corner of ski goggles paired with 600 MHz ARM Cortex A8 processor running Android 2.3.3 and GPS+sensors, Recon has effectively created an unobtrusive HUD for skiers. Network connections are designed to be made via a Bluetooth-paired Android smartphone. Interesting idea and article. Compare this to Google Project Glass.