The slab-phone was probably a response on the SonyEricsson P series that was really good, had a p900 myself (p800 2002,p900 2003,p910 2004). It's such a shame that SonyEricsson regressed in their design mojo because their 2006 followups of the series (p990, m600, w950) _decreased_ screen size and added front buttons (I started looking at other replacements until I got myself an iPhone 3G when they finally came out here).