Are we all talking about the Release 4.1.0.466 (uptil now for Bharti & O2 Europe) here?
~~Edit~~
Decided to compare the Bharti .466 and the O2 Europe .466 OSs by installing each on my PC.
(I already had the Bharti running; simply moved the entire folder out so I could compare after O2 OS install).
Here's what I came up with:
O2 Vendor.xml and
net_rim_bb_qm_peer_resource_en.cod files are newer than the Bharti.
O2 Vendor.xml mentions the TMO US
4.2.0.53 OS while Bharti does not show it.