Before I foundout about Glide I knew about Cloudo, and I posted an of it, and I first foundout about web based operating systems back in 2007, and I believe they started before then. used to be my favorite until they f*cked everything up. You can use Glide for free, and you can pay for additional space, I mainly like it, cause I can connect to it with my smartphone, and the software built into the Lucid Web OS sucks, and is terrible. I just didn't like it at all.
I still like Cloudo, and use it quite a lot when I'm bored, and I'm still in a mix between Cloudo, and Glide, cause I really like them both, the only advantage I think that Cloudo has over Glide is that it has a built in web browser, and a development toolkit that you can use to develop software for the site in XML.
Yeah Google has one too, and theirs sucks as well it's not cross browser, you must have IE, and it has the same damn name as their Linux OS called gOS (Stands for Good OS) and I tried their Linux OS, which is based off of Ubuntu 8.04, and I didn't like it at all, maybe it was cause of what they put in it, but it was just terrible for me.