[Plugin: Widget Logic] Admin only widgets?

you could use current_user_can(‘capability’)

i think capability can be an old fashioned admin level type integer or the more modern capabilities. have a look at

http://codex.ww.wp.xz.cn/Roles_and_Capabilities

nonetheless, the current_user_can function should work when displaying pages and posts. current_user means the logged in ID.

i have used it to show extra post information viewable only by logged in site editors.

try it. make an admin and non-admin user, and just try adding some widget logic that uses that function.