Wasn't available yet for me but tried out the apk. Seems promising but since SMS/MMS through Allo sends to non-Allo persons using shortcode (recipient without Allo receives a text of what you send plus text saying who it's from w/phone number stating the sender is using Allo and gives link to download Allo. From shortcode number something like '44034') , I don't think I can move to this yet. I tend to backup my text and it seems there is no way to currently restore/backup text to/from Allo so I can view previous conversations, which that right there may be what may hold me back. Hoping in the near future update that Google can somehow integrate using my own phone number for SMS/MMS to non-Allo persons so that they would not receive text from these shortcode numbers. Other than that, overall seems promising nonetheless.