Typically with pay-as-you-go, consumers don’t have to commit to lengthy contracts and have the flexibility of using it one day or month, but not the next. The pay-as-you-go segment, which compares to the prepaid market, will be welcomed by some stiff competition. Just recently, Virgin Mobile (NYSE: VM) (owned by Sprint) rolled out a $40 unlimited monthly prepaid plan, which is half as much as what Verizon Wireless charges for prepaid mobile broadband, and about $20 less than what the carriers charge under a long-term contract.

Given that Sprint (NYSE: S) owns more than half of Clearwire, the plans being announced on Monday could be fairly aggressive and include both Clearwire’s 4G service and Sprint’s 3G. The call will begin at 8:30 a.m. Pacific and be hosted by Clearwire’s Chief Commercial Officer Mike Sievert.