I realize I am responding to an old message, and that this message has 
probably been addressed, but Tom, as the old saying goes, it depends on what 
you are looking for.  The most accessible cell phone is that oasis 
screenless cell phone.  It is a candy bar style phone, and you can get more 
info on it by going to:

http://www.screenlessphone.com

But I just got the LG 8350 through Verizon Wireless which has some voice 
command functions and is fairly accessible.  It is a flip phone, and by in 
large I do like it although its battery life could use some improvement as I 
had to buy the extended life battery to keep from charging it every two 
days.  And its voice recognition in places where there is background noise 
such as restaurants is marginal at best.  But I left Sprint in favor of 
Verizon because I think their coverage is better, they offer free mobile to 
mobile for all Verizon customers, and they also offer free Directory 
Assistance for their blind customers.  Good luck.  73.
Harvey