[mailanay]

With tens and hundreds of emails in the INBOX, going forward, how much would email contribute to the virality of the application? Can SMS work out to be an interesting alternative? SMS is guaranteed to be delivered, there is no SPAM filtering yet and the probability of reading SMS is much higher than an email.

[paul]

Guaranteed in what sense? I think I'd be pretty unhappy to get random invites over sms, actually.

[axod]

I'd be unhappy to get random invites via whatever method. Whatever happened to word of mouth? Of people telling other people about a cool app/site off their own back, because they like it and it's useful to them?