John

What programs are you going to run? You have an ipad now and,presumably, it is not big enough for you to see notes and lyrics.

I have an ipad with Unrealbook for lyrics and lead sheets, and Karaoke Anywhere for MP3&G files. I also have a Windows based touch pad(Acer Icona Tab) used for the above plus scrolling Midi Karaoke files(notes and lyrics), plus my VanBasco SMF program. The tablet can be detached from the keypad mounted on my mini mic boom with the ipad holder on the end.

Both work well for me, except you would find 10 inches too small. I see merit in what you exploring. What specific tablets are you considering ?