I like this idea as well. But for item to actually be useful, it would have to be easier to get then a 300 sneak char. So cant really be an experimental thingy. Needs to be a massproduced thingy to allow it to flourish.
End result however I think, would be sneaks with 75 hex visibility range, and factions would require less sneaks per fight, but with current fast relog, no big deal.