Back in February, I asked the hive mind whether my bulb was coming out of dormancy; I haven't had it that long (since April 2012), and am still getting used to what it does, and when. The response from readers was somewhere between "not necessarily" and "probably not."
I went ahead and potted it up anyway, about six weeks after that, but it took forever to do anything visible. I started to get worried that it had rotted by late May / early June, just because it seemed like it had had more than enough time to grow, if it intended to, and I still wasn't seeing anything. Out of laziness and hope, I left it alone, and finally, on 11 June, I saw the tip of a leaf poking out of the soil. After which point things progressed more or less normally.
I'd thought, when this all started to happen, that it had started significantly later than in 2012, but when I checked the old posts here, it was basically the exact same date: the "squid" Amorphophallus picture in this post is dated 19 June 2012, as opposed to 22 June 2013. With any luck, I'll be able to remember this next year, and not spend so much time worrying about it.
Speaking of Amorphophallus -- did everybody else see Zach's recent posts about propagating A. atroviridis from leaflet cuttings? If not, you probably should: the first is here, and the second is here.
Unfortunately, this doesn't work on A. konjac, so I won't be able to try it for myself. (Unless I find some way to acquire another species of Amorphophallus, which I'm looking into. . . .)