How about an "hg qstatus"?

[Bela Babik]

For non applied patches I am using the following script (on Windows with msys):

http://rafb.net/p/BFnVs294.html

Called from this bash script:
#!/bin/sh
PARAMS=
if [ "x$1" = "x-n" ]; then
	PARAMS=$1
	shift
fi

LST=$1
if [ "x$LST" = "x" ]; then
	LST=$(hg qseries)
fi

for act in $LST; do pst.py $PARAMS .hg/patches/$act; done