Things just keep going from bad to worse for Motorola (NYSE: MOT). Once a shining example of a success story in the wireless space, the firm’s latest blow came today in the form of a junk rating from Standard & Poor’s, the WSJ reports. The credit rater said problems at Motorola’s mobile devices unit are likely to continue for some time, which will drag on the company’s profits and result in higher debt-to-earnings ratios and less cash on hand. This comes just after the company put its plan to sell the handset business on hold amid the credit crunch and recession. S&P cut Motorola’s rating by two clicks to “BB-plus,” which is one notch below investment grade.