If you've ever tried to send a text message from a concert or football match, you'd understand the first issue: needing to be online to use the app gives it woeful performance when 500,000+ people are trying to simultaneously access cell networks in a confined space. The Facebook App ground to a halt and messages took hours to get through: real time photo sharing app? No chance.
As a consequence of this, we (I got my beautiful wife to use it as well, so we had a base group) kept getting dropped from the group. By the end of the day, there were five members of the group- but most of our photos were added to our solo group instead! So we saw few photos from others, even ourselves.
Not being easily connected also sucked battery life as the app seemed to be constantly trying to geo locate. We killed it half way through the day, when we had to turn our phones off to preserve battery.
I can see potential here- that's the mulligan on offer. At my next conference- smaller crowd and something stronger in common than our head of state- this could be useful. But sharing my photos through a confusing interface that doesn't work in big crowds and is supposed to only add value in big crowds? Not again.
As for the 500 photos- we ended up with 32 in our group and another dozen that ended up in our solo accounts. Did the app recognise and add them?
Sent from phone so apologies for typos, if any.