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I had the same thoughts about mobile phone app implementation but there would no doubt be some large issues to overcome. Not all phones can have apps, etc, not

• seiji 18y ago
  Phone apps have a few problems: * How many models and manufacturers and OS revisions for phones are there? Do you have time to create and support 80 versions of your application? * No phone can communicate peer-to-peer, so you are reliant on the carrier network or if you are lucky, 802.11abgn access. * Phones are locked down. Even the glorious iPhone has a direct reference forbidding peer-to-peer applications in the developer docs. * Even if all of the above was feasible, extremely few people would install your application on their phone. Sorry. All the above hassle leads to companies such as Brightkite saying "screw it, we're going to use SMS and webpages to be dodgeball++"