I don't follow you now...
There is already an option to list the games by the letters...
(I probably have misunderstood something).
Edit:
(For the interested
The only game that won't show up on the list, if you search through all the letters is:
μ-cade (aka Mu-cade)
:w00t:
(But we'll create a new genre for that one hopefully. Above 0-9 maybe, titled #-% or something :bleh: )