It can also have other legal implications. We (a non-US company) just got informed by legal that we shouldn't email copies of our patents internally because our

It can also have other legal implications. We (a non-US company) just got informed by legal that we shouldn't email copies of our patents internally because our email supplier is in the US - and any of our patents could be regarded as US property. So a contract sent on a Blackberry between two UAE parties - could come under Canadian law.