Lol; I won't even try to answer that question; they're just so many software I want accessified (hmm; is there even such a word as accessified)? Everytime I think of one, a dozen other programs pop up.

zeduckmaster, I recently looked in to making google maps accessible but ended up not thinking I had the time to pull it off.  Among the people I had told the idea about, they were all very excited about it.  They can currently pull up the textual information from a search, to grab a phone number or something, but they miss out on the ability to "see" the top down view to visualize where the business is in relation to their house.  For places within walking distance they would benefit from being able to actually walk there, but they would require more than a short list of driving directions.

In the event that you want to tackle this idea, here is what I was attempting to do.  The plan was to let them enter their home address (to be stored) and then enter key words to search, like Pizza.  When the search returned all nearby pizza places, they could select one/some/all and tell it to add this to their map.  The map would be a large 2D grid like the Castaways game or battleship if you've never played it.  This map would automatically scale itself to include all locations added, and would have their home in the center.  All roads would be filled in, with the assumption that sidewalks line them all, and they could literally move from tile to tile to follow a sidewalk to their destination.  I didn't work out the navigation options, but the system would need to be able to talk them through getting there, and hopefully it would all work well enough that someone could then venture out and walk to the business having never been there.

Victorious that's pretty much the idea.  The problem I was having was pulling the proper data from google maps.  I couldn't get valid information about buildings and trees, only roads.  I ended up switching over to a newer map system called Ovi that helped with the other landmarks but was terrible for just about everything else.  In the end I was going to have to use data from Google maps, Bing, and Ovi in combination to try to get all of the data I needed, and I just threw up my hands and decided that it was just too much work for the amount of time I have available to work on it.  I think the idea itself is doable, I just don't have time to DO it.  If another developer was willing to get it made, I would be more than happy to hand over the idea.  I'm not big on taking credit for ideas, I just want to see the end product existing and helping people, even if that means someone else created it.