I use online backups for financial data. I also use property managers, who have their own files, so that's another offsite backup. But probably a good idea to get their data protection policy as well.
I lost an ipad recently, and while I I was lucky and didn't particularly need to have it encrypted, I will certainly reconsider when I buy my next one.
There are a couple of full disk encryption products on the market, and they may be getting reasonably priced. There is increasing demand.
Health care organizations require encryption for HIPAA and many businesses are dealing with mandatory disclosure laws when they lose personally identifiable information of their customers, employees, or whomever. Some states have a safe hardbor provision that shields companies from disclosing if there's encryption. And if they do have to disclose, having encryption in place is better PR for them.
The onslaught of portable devices, not just laptops, but tablet computers and smartphones, is driving a lot of attention on this business risk.