Is it me or are webapps not working as intended?

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http://askubuntu.com – So I was just trying out the Ubuntu 12.10 webapps feature, but they don't seem to be working as they should.. I notice a few things that (to me) don't work as intended, or shown of in some video's. First of all, most of them don't integrate with the messaging menu, even if they should. For example, as far as I heard, the GMail webapp should show in the messaging menu, but it's not there at all. Also, I don't get notifications if a new email arrives. Second, when you activate a webapp (for example, Twitter) it won't focus, but instead gives focus to Firefox, which doesn't feel right to me. ( (HowTos)