Wal-Mart to offer prepaid cellphone service -- chicagotribune.com

Wal-Mart Stores Inc., intensifying competition in the low-cost mobile service market, said Wednesday that it would begin selling prepaid cellphone service starting at $30 a month.

The Straight Talk service, which will include an unlimited calling plan for $45, will be available for purchase at more than 3,200 Wal-Mart stores nationwide beginning Sunday. The $45 monthly plan includes unlimited minutes, unlimited texts, unlimited mobile web access, nationwide coverage and unlimited 411 calls...