"Slash" always means forward-slash, only DOS/Windows folks ever called backslash slash.
Thanks for the advice about the stratosphere. It now looks like I'm going to keep this particular Droid4 - if I hit the slash key repeatedly, it eventually starts to respond. That will do for now.
T-Mobile G1 / radio 18.104.22.168 / SPL 1.33.0013d / Recovery RA-dream-1.7.0 / FroyoByLazlo-4
T-Mobile TP2 (RHOD210) / radio 22.214.171.124 / WM6.5 / XDAndroid FRX06+Fixes
Verizon Droid4 / 6.16.217.XT894