This topic interests me also. I have come over from Apple and I was used to sending video messages, via texts, with my iPhones. With my S5 I cannot. I have been doing a lot of reading here about possible solutions…seems crazy to have a phone that takes such awesome videos and not be able to share them (I’m not interested in limiting the video size & therefore quality to be able to send it…it basically becomes unwatchable). I was told Whatsapp is a good way to solve this problem (except anyone receiving the video has to have the app installed) or putting the video on YouTube. I’m not thrilled about putting videos of my kids on YouTube (it’s mainly videos of my kids that I send to friends and family). I tried to share some videos as a test with my wife on You Tube set as private but she was not able to view them…I think she would have to have a Google + account.
Just seems like in 2014 it would be much easier to send small videos via mobile devices.