Hi Philipp,

Thanks for the feedback; these suggestions are great.
I've got a couple of short queries below.

On 15/02/2010, at 10:35 AM, Philipp Stephani wrote:

> - maybe some wrappers around LaTeX-2 conditionals, but that is syntactic sugar

You meant for functionality that doesn't yet exist in expl3?
Can you be more specific?

> - key-value option processing with l3keys

What's missing?

> - dedicated stack and queue datatypes that hide their implementation

Can you go into more detail about what is deficient in l3seq for this?

> - \exp_arg_unbraced:No === \exp_after:wN

You'd like this to exist, you mean?

-- Will