If you think things are bad now, just wait. There is a bill introduced in the House that would relax existing telemarketing laws regarding cell phones, and there are a lot of big businesses pushing for it:
HR 3035
The reason most people don't get many telemarketing calls to their cell phones is the current law prohibits calls to devices where the consumer incurs a cost for the call, (and that means both taking away some of the minutes you pay for or a text message that you have to pay for). But if enacted this law would:
1) Change the definition of "automatic dialer" to one that doesn't apply to most of the machines currently in use, which would allow the more common "predictive dialers" to call cell phones. It also means more calls where you'll answer the phone to find nobody there as the predictive dialer has "abandoned" you.
2) Make the current laws requiring "express consent" from a consumer before contacting them more liberal by adding :
Quote
A person who provides a telephone number as a means of contact evidences consent under this paragraph
And there is no mechanism in the bill to allow you to "opt out" of these calls. If you've given them "consent", (and the legislation doesn't specify any time period, so even if you gave them your number 10 years ago in theory it would still count), they can keep calling you even if you ask them to stop. It is supposed to apply only to "informational" calls, such as flight information, but again that isn't clearly defined and leaves a large loop hole open for interpretation and I would expect businesses to interpret it rather loosely. After all, calling to tell you that they are going to have a big sale soon is "informational" isn't it?
3) Prohibit state laws from being more restrictive than the Federal law, (on these issues, not on general telemarketing laws).
So if you'd rather not have your cell phone ringing at all times of the day with calls that will eat up your minutes you might consider calling or writing your representative to let them know how you feel. There are times when you look at the Congressional Calendar and wonder why they have so few actual work days, and then there are times when realize we might just be better off if they took the whole year off.
Edited to add:
UPDATE: Rep. Terry pulled this bill late yesterday so it is now dead.