Frost & Sullivan 2006 65% 1
50 2
IDCITUMII1990 1999 10%, 49.2% 1-1 1-1 3
4
2005 GSM 3 2006 3G 2008 GSM GPRSCDMA 5
6
7
8
Frost & Sullivan 2006 65% 9
Email Ovum 2005 19.7% 164 10
11
12
13
14
Jupiter Media Metrix PDA46% 2003 2-1 15
16
Degree papers are in the Xiamen University Electronic Theses and Dissertations Database. Full texts are available in the following ways: 1. If your library is a CALIS member libraries, please log on http://etd.calis.edu.cn/ and submit requests online, or consult the interlibrary loan department in your library. 2. For users of non-calis member libraries, please mail to etd@xmu.edu.cn for delivery details.