blaco

So today i logged in to my gmail account and had this message on my hangouts widget "Join Google+ and get Hangouts!", am i the only one with this message ? did i miss something ? i wasn't aware that Hangouts was a "trial" and it was a Google+ only....

im planning to build a SaaS, my potential clients will generate transactions every 15 minutes or so, they also have very weak internet links cause they dont live in the city, so it could be the case that internet is down for more than 30 minute. I guess the solution would be to build an "offline" mode, but im not quite sure how can i do that or where should i even start, any pointers in the right direction would be appreciated.

thanks, B.