Not necessarily. I would think that Motorola is as capable at filing for bogus patents as other companies, and it would be odd if they had only filed for patents on hardware. Especially if and when they saw significant value in their patent portfolio; why wouldn't you file for easiest ones you can get? Surely they have filed for all kinds of patents, including (but not limited to) hardware ones. It would be nice to get a breakdown of types of patents, as well as years they were applied for; it seems that the trend for bogus patents has been increasing... so older patents may be bit less likely to be bs ones.