Palm and Verizon Wireless announced a deal Thursday that brings the device maker’s popular Centro smartphone to Verizon subscribers. The Centro’s debut on Verizon comes some nine months after Palm launched the device on Sprint’s wireless network and about five months after it became available to AT&T customers. The handset, which is available to Verizon customers on Friday, June 13, costs $99 after a rebate and with a two-year contract. Without those susidies, the phone is priced at $389.99.