You Need To Side Load APPs Not On Gplay
install "ES file explorer" apps from google play
enable unknown sources
Setttings > Applications > Unknown Sources
copy "com.google.voice.apk" whatever the package name is to usb stick sd card
open ES locate mounted drive "usb/sd" hightlight APK hold down the center red/green/yello/blue track pad scroll down to install and click install.
sum apps work sum dont im currintly trying to get a usb webcam app working to use as a security camera.
also if the app dosent support portrait mode it will not work the gtv100 is locked in to portrait mode.
apps i know work are
puttv ssh client
lightgrid live wall papper
google earth (dosenot work altho ewather HD installs and works and it uses the same maps)
all the usb cam apps i tryed donot work i think it the kernel so... if i knew how to mod one i woud
also i am useing an non rooted device so i know this will work on rooted ones.
anyway thats a fue of the apks.
also if you do use this info i take no responsibility for any damage/bricking/locked at loading screen/etc