Send To OmniFocus widget is great for typing your own text and sending it to OmniFocus as an inbox item. It is also useful if you don’t want to use the OmniFocus QuickEntry window to create inbox items.
JKT Does what it says on the tin but, given that it reproduces a feature of the app, some might wonder why bother. Well, it saves me from having to remember a keyboard shortcut and also lets me check my other widgets at the same time. (Version 0.5)