I basically didn't get it.
The Zeemote is not for every game. I wouldn't bother with it for things like Deal or no Deal but it's for serious games like Street Fighter and Sonic. Once you get used to it, you find it hard to play these games without it.
Yes it has restrictions BUT it makes playing games a fair amount more enjoyable and removes a lot of the frustrations that come with mobile gaming.
I'm not sure if the Zeemote is the future of gaming but the ease of use definately indicates that if it isn't, the technology behind the controller will be used for something else (possibly a media remote which it can already do).
The Zeemote is the first of it's kind and I expect to see many more similar products to follow. Depending on price, I am looking to buy one of these for my one and a half hour journey to work. I know this might sound a bit like an advert but this has seriously grown on me especially now I have an N97 that doesn't have a d-pad or keypad. I hate the buttons on teh screen method because it takes up part of the screen and isn't as responsive as actual buttons.
It's currently only bundled with phones, you can get it on T-Mobile with the Sony Ericsson W705 I'm guessing to test the market, so it's difficult to say if it's really going to fly. But Zeemote have said that it'll be available towards the end of the year with a free game for around £45.
So in conclusion, I think the Zeemote will find it's place in the world as long as it knows that not everyone is that serious about mobile gaming (I mean most of us just do it so we don't have to look at the guy in front of us on the train). But as long as it compliments games, especially as games get more advanced, it'll be useful for mobile gamers.