1) Next to the improved firing interface, I really appreciate that the
lower right portion of the screen is now used for something, i.e. a
list of enemies in your sight. That's what I liked about the tile
version in 0.3 (didn't try the 0.4 one): in the lower right portion of
the screen, you had a visual representation of your inventory and the
items lying on the floor where you're standing.

Now, I have a further suggestion for the ASCII version: there already
is a visual representation of the items lying on the floor, appearing
in the message window:

Items here: !! % ) [

Which is very handy when you want to quickly find out whether there
are any corpses yet to be slaughtered. Reading the message list is
definitely slower than visually recognizing the % sign. The problem
is, that this message only appears if 5 or more items are lying on the
floor. Also, you have to keep pressing ; to check whether there are
any corpses left, after slaughtering a corpse (in the 0.3 tile
version, I would just look at the lower right portion of the screen,
and keep slaughtering until no corpse was left). So my suggestion is,
to add the "Items here" permanently to the lower right portion of the
screen (if the items retain their original colours in this visual
representation, experienced players could even select other items to
pick up, without reading the list in the message window).

2) Bloodsplatter on the floor is way cool! Maybe it can be used to
track down running monsters that left your line of sight?

3) I liked pretty much all of the command changes, especially the one
for auto-exploring. I usually wear out my little finger by pressing
CTRL all the time. But there is a feature of the praying command that
disappeared in 0.4: the ability to stop praying. In 0.3, you would get
the following if you pressed p while praying:

Stop praying? ('y' ends prayer, 'r' will renew prayer)

But in 0.4, pressing p automatically renews prayer. This is annoying
if you're hungry, and you need to slaughter a corpse, but you're still
praying - you'll have to wait it out, by pressing 5. This can't be
what is intended, so is there really no way to stop praying in 0.4?