O2's first xda was reviewed here in June 2002. A lot has happened in the handheld computing world since then, but O2 has found that the xda design and branding works well, and has boosted the product range over time. Late in 2003 came the xda II, which internalised the original antenna and boosted the specifications. Earlier this year we saw the xda IIs with its slide-out keyboard. The latest member of the family is the xda IIi.