I find it much easier to just send an email to update my Facebook Status. Pixel is just another service which i think is pointless.
Key things i want to do with my facebook is status updates and photo uploading.
With the Facebook installed as Sharing Service i can do photo uploads, and email i can do update status. If you have Facebook notifications going through to your email on the Nokia N900 (nokia messaging) then you can also Reply to Comments via email.