Back in April, Sony unveiled its first tablets: the S1 and the dual-screen clamshell S2. Details regarding the two tablets remain scant, but we do know that the big brother, the S1, will sport front- and rear-facing cameras as well as a Tegra 2 processor. And that’s about it. Since Sony made the announcement the company has been very mum on topic, but to get people excited again, it has whipped together a five-episode teaser video series for the two tablets. The first one, which you can watch above, hit the Net this week. Truth be told, we know no more about the S1 than we did before we watched it. Hopefully the later episodes will hold more clues.