If that happens, how will users switch to other networks and install SIMs in their phone when they go abroad to avoid outrageous roaming charges?
Not to the pre-unibody MBPs it isn't possible, no. Maximum size 9.5 mm drives
Once they have, you'll be able to view a graph of their reputation gained over time.
Here's a preview of what the graph will look like:
No reputation gained yet.