Sure, mobile devices have plenty of downsides: the blistered thumbs, people squirreling away as they bump into you on the street, etc.

For President-Elect Barack Obama, an apparent BlackBerry enthusiast, there's a wave of regulations placed on the White House's use of e-mail.

So it appears Obama will have to give up his prized portable. That could be quite an adjustment; for years I shied away from using a smartphone, but now I can't imagine giving it up.

Beyond that, mobility and wireless technology could pose a big problem for whomever Obama appoints as the nation's new tech czar. E-mail, particularly has caused quite a few problems for the White House in recent years, including this.

That may be another reason why, as our new editor argues, the U.S. really needs a CIO, not a CTO.

CIOs face different restrictions, most of which only truly come to light in a court battle. But there is that big issue of data loss, and no CIO wants to see his/her company make an infamous headline about a massive loss of customer data, or, sometimes worse, a data breach.

The rise in mobility clearly raises huge concerns for CIOs and their security experts. And they're only going to grow from here.

So tell us, IT pros: what are your biggest security concerns? What policies or restrictions are you placing on executives using smartphones?