Just got an android phone so I've worked out how to do this if you have a google account.
For those that do and want to update their calendar/mobile with 'well fixtures here's what to do:
Sign into your google account.
Click the Calendar link at the top.
At the top right click the wee cog icon and select Calendar Settings.
At the top left of the page there will be four options "General / Calendars / Mobile Setup /Labs"
Select Calendars.
Halfway down on the right there will be an link to "Browser Interesting Calendars". Click it.
Three options at the top now, "Holidays / Sports / More".
Select Sports.
Select Football.
Scroll down and select "Scottish Premier League".
Click the "Subscribe" button next to Motherwell.
This will update your calendar on google with all the fixtures.
Sync your phone with your google calendar and there you go.
Hope this is helpful to the guys with android phones.