Siemens thinks small for cell phones Summary: ZDNet's Patrick Houston looks at how Siemens keeps cell phones small by featuring a sliding keyboard design. May 20, 2003 -- 17:51 GMT (10:51 PDT) SHARE: SUBSCRIBE TO: Mobility TOPICS: Mobility, Telcos 0 May 20, 2003 -- 17:51 GMT (10:51 PDT) Loading... Please wait. Topics: Mobility, Telcos Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.