Jolicloud 1.1 has just arrived, and is a nice upgrade to the previous version. The operating system now works on every PC and not just on netbooks, although – in my opinion – is really worth a try if you have a netbook. On other PCs, I personally prefer a more traditional OS like Ubuntu, just because I have a larger number of options.
In any case, Jolicloud is extremely interesting, and gives a flavor of cloud based OS. Being a digital immigrant, I still prefer applications installed on my hard disk, but on specific hardware the concept of cloud applications is definitely interesting.