It appears Boost Mobile’s new $50 unlimited everything plan has become a victim of its own success. Customers using the prepaid wireless service owned by Sprint Nextel have been experiencing delays in receiving text messages lately. According to reports, customers and dealers have complained that text messages often arrive hours late, sometimes in the middle of the night. One customer complained to an AP reporter saying, “I got five text messages at 4 o’clock in the morning that I sent myself nine hours before.”