ReadMIll, a young Berlin-based startup subjected themselves to a withering interrogation by YCombinator founder Paul Graham at yesterday’s TechCrunch Disrupt conference ni an on-sage Office Hours session. They haven’t launched yet, and Graham repeatedly told them should launch now – “Why wait?” he said.

Indeed, why wait. So today ReadMill has taken that advice to heart and is opening up to the world. You can grab an invite here. It’s also announcing it’s had seed investment from Index Seed, Passion Capital to the tune of €280,000.