I admit, some gamers will think a lack of online kills the deal.
Especially for all those games that have no worth solo like WoW.
But not all of us play JUST the latest cutting edge graphics demanding must be online PC titles.
Gary Grigsby's War in the East is a new wargame for me. It likely requires more computer muscle than any computer game you can think of in the non graphics realm.
It barely runs on my PC which has a perfectly fine 2 gigs of ram, and a dual core 2.53 Intel processor with a perfectly fine video card.
This is because the game demands a massive sum of processor muscle in resolving sheetloads of actions of a non graphics nature.
Because complexity is not always about the video image.
Thus I wouldn't be playing that game on the go even though it has zero need for being online.
The current muscle in mobile devices just isn't up to the needs of that program.
But most of my other games (quite a lot actually), would run just fine on an under powered machine, and have NO need of being online to be played.
The O in MMO is of course only vital to games that are after all MMOs.
Not all games are MMOs.
Granted, not all gamers will give a damn about my schlock either
So it comes down to who is the target audience of the device?