Better Late Than Never

I did some usability testing of my interface over the past couple of days and got a decent chunk of responses many of which address stuff I hadn't even thought of. The first and most glaring is that my 'Back' button is totally a rotated 'Eject'... now I just feel silly.

Exhibit A

A good suggestion made concerning the timetable was when the top of the table is reached the arrow for up should fade out. Likewise for the down arrow at the bottom of the page.

One thing people kept trying to do when on the timetable screen was to get directions by saying the name of the class they wanted to go to. While the system automatically alerts the user of upcoming classes with an adjustable bracket of time (default of 15 mins) if the user performs this action manually it should do it anyway.
While in 'Options' user's natural instinct to increase the volume was to say "volume, up" or "volume, down". In response to this the volume would increase by 5% each time it is told to increase/decrease. The options of "full volume" for 100% and "mute" for "0%" would also be added.

The same idea applies to the zoom functions of the map with "zoom in" and "zoom out". Another note on the map is the 2D map should be oriented so that the direction the user is facing is adjusts where the buildings appear around the location icon. The buildings the user is looking at would be at the top of the screen and these would rotate as the user turns.
Most people said that navigating (excuse the poor choice of phrasing) the interface was intuitive and the keywords were mostly second-nature. The exception being when people wanted to go to the 2D map from the POV screen they often just said "map".
One idea that came up was that there should be a audio tutorial that plays when the system is first activated. This could explain the 'Back', 'Menu' and 'Key' buttons as several people didn't get what Back and Menu were straight away from their symbols.
Last but not least it was suggested that there be some kind of 'hold' function that allows the contact lens to stay active so if people want to constantly view through their Peep-hole without holding their hand by their head the whole time they can. Whether this would be a keyword or a physical way of putting the ring into the headset is yet to be decided. In fact, the ring could be removed entirely. If the headset was to hold its own power and was rechargeable then there could be a hold button or switch on it that stops all keywords from functioning. This would remove the novelty of the peep-hole gesture but it may be a necessary step. Its a shame I can't actually make this...