On Wed, 10 Mar 2010, Vedran Miletić wrote:

> 2010/3/10 Vyatcheslav Yatskovsky <yatskovsky@gmail.com>:
>> Hello Wolfgand and other ConTeXties,
>>
>> You are welcome to watch and expand new wiki page
>> http://wiki.contextgarden.net/Math_setups
>>
>> Vyatcheslav
>>
>>> \setupmathematics[autopunctuation=yes]
>
> It would be cool if this macro could also allow changing maths font
> between sans and serif.

That should be doable, just like we change from italic greek to upright 
greek.

Aditya