One note is that to me "Over a 100 of integrations" reads very strangely and should be "Over a hundred integrations." Perhaps that's just my preference though.
Also, sending files over XMPP has pretty much always sucked - there are a bunch of incompatible ways to do it and it's always been hit and miss depending on which client your chat partner was using, network topography, etc.
More from the project: https://core.telegram.org/techfaq#q-why-did-you-go-for-a-cus...
However after Google Talk was replaced with proprietary Hangouts protocol we had to look for other options.
Telegram fits our concept just right. Let's see what other people think. You are welcome to participate.
All these newfangled alternatives usually rely on the Google services' push notifications api afaik.
> Show HN is for something you've made that other people can play with. HN users can try it out, give you feedback, and ask questions in the thread.
As far as I can tell, there's not a real product here we can try yet.