On June 19th T-Mobile’s celebrating father’s day by offering free phones to customers. The sale will only run on Saturday and starts at 8 a.m. through all retail & select retail partner locations. Customers will be able to get any phone they choose for free by signing up for a “family plan”, which is a plan that has at two lines of service on a single account. Current T-Mobile customers can convert a single user plan to a family plan by adding an extra line, or by adding lines to an existing family plan. You will only be able to get up to five free phones with a single-family plan. The promos will include T-Mobile HTC Mytouch 3G Slide & the Garminfone. The HTC Mytouch 3G Slide usually sells for $180 with a two-year contract and mail-in-rebate & the Garminfone sell for $200 on a two-year contract & mail-in-rebate. This has to be the most expensive promotion that a cell carrier has done.