It's probably really obvious (hopefully) but is there a way that I can view and edit the system files on my n900 using ubuntu?

I've been reading the modding thread and while I have installed midnight commander and used it to add the "Reboot" button with no problems, there are other things I want to mod and play around with like changing wifi logo, battery logo's etc, but I would just feel a lot happier doing this via my laptop.

Anyone have a way?