From Fotis' K2 Stable Blog entry:
''simple Joomla! plugins that extend the item, category and user forms, providing more freedom compared to the "extra fields" feature''

Any advice on how to create an extension to add a couple of additional form fields (text fields) to the default ITEM form?

i.e.
Item Property ID
Item Property Price

Mark

I'm on a bit of a roll...other useful things that I could use (but haven't a clue how to develop):

Google map integration for Items / Categories
Newest Item
Popular Item
Special Item (as opposed to featured)
FP Slideshow integration at Item and Category level
Tabs in Item content
Extra Fields inside Tabs

;-)