[mediacrisis]

I was optimistic when I learned that GIMP would open .psd files. Then I noticed the distinct lack of a slice tool. Googling found me no useable alternatives other than "crop, save, and ctrl+z".

May be trivial for those who don't work on front end development, but a huge selling point for Adobe.

[pdubs]

It will also choke on certain vector formats in PSD as well as CMYK PSDs.

[tg3]

I shelled out for Adobe's new month-to-month licensing for exactly this reason (CMYK PSDs). When paying month-to-month, the $700+ license becomes much more palatable.