… or is the confusion over dates the whole point, considering the “crack in time” thing that seems to be the series’ ongoing arc?
The popular assumption is that the Amy that goes off with the Doctor at the end of the episode is either from 2012 (with the “main” story thus taking place in 2010) or 2010 (with the story being set in 2008), the latter seeming to me the most likely due to Rory owning a phone that came out in that year (although the former is possibly suggested by reference to Twitter, which was nowhere near as widespread in ’08).
But having watched the ep a few times now, I can’t believe I still didn’t spot this, during the slightly rubbish time-lapse photo “Doctor’s memory” sequence. Guaranteed to blow your mind:

WHY ARE THE CUPS WOBBLING, WHAT’S GOING ON?

…did anybody actually bother watching K9 on Disney XD? I would’ve watched it but I wasn’t, er… that is to say I couldn’t, um…

…yeah. So. Did anybody see it?

Filming for The Sarah Jane Adventures began last week, according to The Doctor Who News Page, with K9 apparently making an appearance. TDWNP have photos, so you can click the link to check them out – oh look, here it is again! – and they also posted a spoiler which I’m going to reprint after the jump.