MarketPress is pretty neat but having a few issues on me.
When using the Global Products Widget on the home blog, it lists products deleted on a multi-site blog and produces a 404. Trash is empty and other changes show instantly.
I changed the home, BuddyPress and muti-site blogs' themes to no effect.
I recreated the product and deleted with the same path, no effect.
Also, I have noticed the various MarketPress widgets' spacing tends to be very tight between other widgets and within it own listing sometimes interfering with the title wrap. Often the Buy Now button overlaps into the next item or widget even.
On some themes it fails more badly than others. Any chance of some tool to better align the widget contents for aesthetic purposes so end user can tweak spacing without hitting the css or php? Spacing, padding to move it in the widget area as needed by the them.
Any documentation to show store owners what receipts/steps that happen as a customer and store owner with payment? Purchase screen shots in action and result? What billing shows/produced as to where purchases originate (API) without experimenting with chained payments to address basic functionality beyond tutorial?