Round trip from CSV to CSV should leave data types unaltered
I love where pandas is going. A use-case for which R's csv capabilities still win, though, is in editing a large csv file that's used as a poor-mans database.

R will keep a column of integers as integers, pandas changes some of them to floats, some to strings! I'm not sure why there's inconsistency there, but I figure I'll kick the general issue your way and I'm happy to clarify as needed.
