Yeah the best thing would be if imessage somehow had support for other message-apps like whatsapp and so on, that uses wifi/data to send messages, the technique should be quite similar between those kind of apps. That way iphone-users could keep using imessage.I dont know they seem to be the only ones i know that use it between themselves, even though they all have iPhones but use iMessage too.
Maybe getting old
Ok i moved into the 21st century, got WhatsApp, the person i wanted to send video was in my contacts so it went through great, bit annoying though you have to use a different app for iPhone to android.
Disregard all my previous useless posts