Couples heading for a nasty break-up should be careful about texting because what they text could end up as evidence against them in divorce court.

More than 90 percent of America’s top divorce attorneys said they have seen a spike in the number of cases using evidence from iPhones and other smartphones over the past three years, according to the American Academy of Matrimonial Lawyers.

Text messaging was the most common form of divorce evidence taken from smartphones, according to the AAML poll, followed by e-mails, phone numbers, call histories, GPS and Internet search histories.