1possibly a lot, but at least:
2- clobber/noclobber TFTP options.
3  "hey, i do not want to overwrite an existing file".
4  Maybe together with an option "overwrite but backup / VC".
5- tsize option
6- "send me revision x" option (low priority) [done]
7- "save as revision x" option (low priority) [done, considered useless]
8