So after many requests to add a sound routine and a request to add a custom error, I have finally added them 

For now, the sound routine may change unless I get approval from yeong and no better ideas are brought forth, but have fun with the examples. Unfortunately, I cannot take a screenshot of sound with the technology I have here, so you will either need to take my word or try it yourself (I suggest using Wabbit and enabling sound, though it sounds the same on a calc if you have headphones).

So the syntax:
conj(Duration,DataLoc,DataSize
This will play the sound for the data at DataLoc. DataSize is the number of bytes to play. Duration is how long to play each note (256 is fast, 65535 is really slow)

Alternatively, you can play just one sound using the ' operator followed by a note value. The notes are 1 to 127 and 129-255 are silence:
conj(Duration,'Value

And for custom error messages, just add another argument to the CallError command and use error code 2:
solve(4,2,"Something
Also, I was wrong before, I did manage to get the Goto option to work, too :

@Yeong: I should remember to include the chart in the readme... For now:
D=Str
E=Program
F=Protected Program
G=Picture
H=GDB
U=Appvar
V=Temp Program
W=Group           ;be careful with this one!
@C0deH4cker: I've no clue what that means, but Grammer is Turing Complete (I believe) and so can emulate other Turing machines, so you can create a new interpreter from Grammer

Is the deadline November 30th at 23:59:59 or December 1st at 23:59:59?
And is this France time, GMT, or some other time?

I didn't use Full in the optimised version, originally, but I decided to show what the effect was (and that made it extremely fast )
In any event, I understand that yeong, but good luck

I am trying to think of how this could be better, though, any ideas?

Sorry for the triple post, but this is a decent update, I believe

So some of the new commands are:
Fix 32
     TextMode. 0 is the default, fixed width font. 1 is the variable width font.

The ' modifier can now be used in the Text( command to display an individual character by number. So to display char 248:
Text(0,0,'248

Output( can now be used to change the font as well as set a font (for the duration of the program).

/ can be used for signed division. This is a division sign with a space after it. This is still tentative and may not remain backwards compatible, though, so any other suggestions are welcome.

solve(4,Error# will create an error. This is useful if you have a custom error handler where you want some errors to be handled by the program and others by Grammer.

I should also note that errors now have a Goto option if the program is not archived or protected. In the first Grammer, this was always the case, but since it has become an app, I have only just added the code to do this. It will jump to the offending line as it would in BASIC

I'm not really sure what other screenies to add, so I will just use one with the incomplete fontset (complete enough for most text).

See this Font Editor, too!

Well, I can now see the matrix and I have become sentient, that is all 

Hmm, I've no idea what could be wrong. Maybe message Contra?

EDIT: Message on the zContest site