I could see a similar model of aligning user/company interests rather than advertiser/company interests working for other services--email probably being the biggest that comes to mind.
This is actually a good thing for revenue as even a small membership fee is going to VASTLY outweigh the per user revenue generated from advertising. We'll see if this idea is capable of jumping from internet nerdom to the mainstream, but mainstream users are also becoming more and more aware of the actual cost of 'free' products.
So... congrats app.net team, and good luck!
Well, maybe. Let's remember that Twitter has more than a hundred million accounts, while App.net has ~7500; we have no evidence that the people feeling that are not just a small number of outliers, much like there always will be.
I agree. I'm not in the business of predicting the future, but it's worth noting that Twitter did not start with more than a hundred million accounts.