I love your design, but in Firefox for me the middle section under "it's as easy as" is not loading, and the "start using timecapsule" button is covering a phrase starting "Do..." at the bottom of the screen.
I am having the same problem on Firefox, but otherwise I think it is a great idea. As mentioned, you should consider how to handle articles that might get lost or deleted. It would also be interesting to allow to share a Timecapsule with friends (might have it already, haven't checked it out yet) so they can contribute to the same Timecapsule and have something to talk about sometime in the future. Keep up the good work!
Thanks guys for the feedback in Firefox. I'll check it out. I think a few people maybe having a problem with the big black box (a video). Sharing a Timecapsule could be interesting! I'll keep it in mind for the next version.