Age IMO should not matter when it comes to the tech or startup world. A meritocracy has been the norm for awhile now, regardless of age. I think these two young kids ought to be applauded for their work so far (hell, I had no clue what a startup was when I was 11, much less had a captive audience to pitch one to) and be encouraged in their endeavors with guidance and mentoring. They seem really driven and have great potential to succeed in whatever they aim for in life. The barriers to entry on the high perilous seas of online and mobile startups are lower than ever and with the right encouragement, they can go far in realizing their dreams. Good luck to them.
they have domain expertise and unique perspectives, plus they are media darlings
a savvy businessman should scoop these kids up