Can I lock desktop icons on X10 Mini Pro?

Is it possible to lock the icons & widgets (i.e. disable the long-press-to-move function) on the Sony Ericsson X10 mini pro? I saw this question - https://android.stackexchange.com/questions/9377/lock-widgets-in-place - but it seems i may need to root the phone, and besides this issue, i am quite happy with the standard user interface.