It's a little known fact, but Siemens used to produce all mobile phones for Sony up to the Sony CMD Zx models. So they had plenty of experience prior to coming up with their own range of cellphones - they were the first to bring out a shock/dust/water proof phone, the M35 model. Some of their phones also feature color screens, WAP, and with the addition of S42 to the range will also feature an MP3 player. Cool.