… the reflex I have seen in some City institutions which try to ban iPods, USB sticks and the like, from trading floors and other sensitive environments.
That won’t work - as JP [Rangaswami] approximately put it, if you want [me] to do that, you’ll need to give me the privileges to stop-search the employees and go through their briefcases, pockets, and check what their phone can do; the result will be oppressive chaos.
The proper response is one of embrace and control, that if employees are going to make use of whatever technology [USB, iPod, WWW, Instant Messenger, 802.11, ...], some facility needs to be made to filter and sanitycheck the means to which it can be put, and that you make the means and constraint transparent and well-advertised to your employees.
In short: be fair, and be wise. It might cost a little more in the short term, but will retain respect, employees and be more effective than the “ban everything” approach.
Amen to that.