"You can now subscribe a US phone number to an SNS topic. After the subscription has been confirmed, notifications sent to the topic will be delivered to the phone as an SMS message."

Note the _US_ in there. I stopped reading at that point and couldn't care less. Hi Twilio :)

Twilio doesn't seem to support SMS outside the US, at least it doesn't in the UK.

Funnily enough, until very recently this was my response to Twilio :). Actually, now I look at it, it's still my response to Twilio re: text messages.

Of course I still need to figure out something to do with Twilio.

This does not seem like that much of threat to Twillio. It not only provides SMS but a wide variety of services. Also, there are a lot of developers already using Twillio, so it does not make sense for them to move to another service.

Well, they're not doing voice so Twilio still has that advantage. Also, support is likely to be much better with a startup than with the huge behemoth.

However, Amazon has the footprint to get you worldwide delivery. Twilio just arrived in (parts of) the EU, but that's a temporary advantage. Also, there's that 0.75c charge. That's already a 0.25% saving and Amazon have a habit of reducing the price whenever possible.

Twilio et al will likely focus on better service, more features, easier signup and use.