10-24: looks fairly compact for a lens this wide (15-36mm equivalent)
23/1.4: wow it's huge! Makes an X200 that much more likely, which is good.
27/2.8: wow it's tiny! but it's also the slowest prime so far. Close to the Panasonic 20/1.7 in FOV, slightly worse in shallow DOF.
55-200 and 56/1.4: doesn't interest me.
Overall, indeed, the system is growing really quickly! If they can keep the lens quality at the current high level, they'll win over a LOT of enthusiasts and become a real force to be reckoned with in CSC-land!