I think the mobile phone form factor is not best suited to forums anyway. For an iphone app to get someone hooked I would look more towards something small and silly which gets viral and can hook people to come that way.
Another potentially dumb idea...perhaps a game whereby the user has to look after an old man or woman. The game will last a couple of weeks and the person's aging will be accelerated along with facts and figures about the horrendous disabilities that they are accumulating. When the character is "dying," the user will be given the option to stop the suffering and cure his aging. The user could forwarded to the Longecity site where they will have to see a small bit of information on the cause and then pay to help their old person.
They are then rewarded with an animation, thanks for their money, information on where their money is going and another game that is hopefully addictive. Perhaps a game where they have to blast the diseases of aging and can join a rank scoreboard online. Maybe you could start just with the old shoot 'em up idea that has information about enemies representing each disease and what it will do to you. It could be a trial and the user have to pay for the full game where they can add their score online.
Yes, I know I'm having a weird thoughts attack as normal!
Edited by Droplet, 06 February 2012 - 07:49 PM.