Placeholdit Image Widgets
Not at this time. Currently the plugin provides access to most of the placehold.it features (except file type). If features are added to placehold.it I will try to implement them here as quickly as possible.
Alas, no. I wish you could but no.
Thanks to Toby Cyns over at TheMightyMo.com for the tip. If you feel like placehold.it images are just a bit dull or your site absolutely needs kittens just check the "Use placekittens.com instead" checkbox. Not that only width and height work with placekittens.