If going the TPB Route, and want to jump to right now,
the following TPB's will help align you well enough to follow the 2 current ongoings which are at issue 39 this month. (Concurrent with most new 52 titles, and probably how these went under radar for so many) .
Anyway, follow these:
All Hail Megatron Vol 1 and 2
For All Mankind (2009 ongoing series vol 1)
Last Stand of the Wreckers Hardcover (Has some text prose stories)
Chaos Theory
More than Meets the Eye Vol 1 and on
Robots in Disguise Vol 1 and on
I would have used a spoiler tag, but there had to be enough to entice to read. Plus the news is 10 months old.
If wanting to see how IDW started, here you go. These are their first ongoing (kinda) stories. They did the many mini-series thing for a while. But here are the door openers.
Infiltration (#0-6) and Stormbringer (#1-4)
These are incentive covers mostly the 1:100 for infiltration, Stormbringer Sketch Covers.
So the early IDW stuff has nothing to do with the current stuff?
I'll start looking on the Bay. Thanks