I broke down and bought a backup Forma a few months ago. I'd been worried they might disappear and I couldn't imagine life without one.
Both of my Formas have sludgy power switches (I only use a sleeve, not a cover). They both usually require multiple presses leading to the occasional reset. Other than that I have absolutely no complaints (I suppose the lighting isn't absolutely perfect but i don't notice it, unlike with several of my other ereaders). I've written rhapsodies about the Formas in other posts so I won't repeat them all here but, for me at least, it's the most perfectly ergonomic electronic device I've ever seen -- size, weight, shape, balance, texture, orientation options, lighting and text customization..... I wouldn't have believed how comfortable it is to hold and read on before I got one. I still occasionally get giddy when I pick it up and feel how light it is.
I don't need another ereader and I don't care about audio (I still think it would be nice to see my book covers in color but I'm not holding my breath), but if the new one has the same general characteristics as the current Forma I'll be right at the head of the pre-order line.