For those who are contemplating taking your complaints to Tmobile's highest USA level, be advised: CEO Robert Dotson has resigned. T-Mobile CEO Robert Dotson resigns - FierceWireless Philipp Humm, a former CEO of T-Mobile Deutschland, will take over the reins as CEO designate as of July 1st - and takes over officially February 2011. Dotson will remain around in some capacity until May of 2011. This change of guard is important to the ongoing battle to get right action regarding the Behold 2. This bit of musical chairs suggests the situation of flux that Tmobile is in.