Trusted Reviews has reviewed the Samsung SGH-Z400 “slider” phone. ‘As with the excellent D600, the tri-band GSM and 3G capable SGH-Z400 employs what is arguably Samsung’s best handset design format - the slider. As I wrote this review, Orange, O2 and Vodafone were all listing the Z400 online from free depending on the tariff. Samsung plays a cagey game with the Z400. It is small and light (97mm tall, 48mm wide, 19mm deep and 107g), stylishly silver, and has obvious consumer appeal with its music playback and photography options. However, it also boasts the ability to view Excel, Word, PowerPoint PDF, HTML and text files courtesy of the Picsel file viewer.’