Am 10.09.2010 um 10:03 schrieb Vedran Miletić:

> 2010/9/9 Wolfgang Schuster <schuster.wolfgang@googlemail.com>:
>> \textdimensionstrue
> 
> Awesome. Are there any other useful switches?

Beside \textdimension(true|false) there is \spaceddimensions(true|false)
to add a small space between dimension.

The units module has unlike many other commands and environments in context
not many parameters to change the layout and it will make more sense
to write another module for units which has these options than modifying
the existing one.

With MkIV we have a powerful tool to do this because Lua make it so easy
to parse and format numbers and units, see here: http://bitbucket.org/wolfs/units/src/tip/files/

Wolfgang