Just sent a mail to maemo-developers warning about removal of gtk+ stock icons:
FYI, Starting from gtk+2.0 2.6.4-1.osso75 the builtin GTK_STOCK_* default icons will be removed in order to save precious memory. It should have little impact on applications, stock menu items and buttons will simply not display the icon which is supposed to be optional anyway. However if your application is relying on having a stock icon visible (such as in the toolbar) those instances need to be updated. There are plenty of funnily named icons in the platform for you to use, and in the worst case you can always package your own icons. Sorry for the inconvenience. This message was brought to you by the performance police. The builtin stock icons compiled in the gtk+ library are causing extra >30k dynamic memory consumption regardless of whether they're ever used. In 770 all icons are coming from the icon theme anyway, so this is a cheap and simple optimization to do. And everyone loves to have better performance, right? :)