I'll never pass up the opportunity to add random NeXT trivia -- Grab.app is one of several applications that came from NeXTSTEP/OpenSTEP with relatively few modifications, along with Preview.app, Terminal.app, TextEdit.app, Chess.app, and probably many others.

For anyone with curiosity and time to burn, comparing early OS X with NeXT/OpenSTEP in VMs is fun, just to see what changed and what stayed. Some parts are extremely different, while some software seemed to be copy-pasted over, while others clearly had a lot of polish put into them for the consumer market. Fun times!