查到一份資料講DELL x51v的，也介紹給有我同樣問題的朋友

The X51v is every bit as solid, reasonably priced and full-featured as the X50v it replaces. It's certainly an excellent contender if you're in the market for a new PDA. If you're an X50v owner, you'll likely skip this model and opt for Dell's Windows Mobile 5.0 upgrade CD which will be available September 30th (though you'll lust for that 256 megs of flash memory!). If you do own an X50 or X50v and upgrade to the new X51, you'll be able to use all of your existing accessories including cases, keyboards, screen protectors and GPS. Some of you may be disappointed that the X51v doesn't offer significant hardware upgrades, but to be fair, the X50v was already very well appointed, and Dell told us that getting WM 5 ready and working for consumers took a great deal of engineering effort. Creating a new hardware platform would have further delayed release of a Windows Mobile 5.0 Pocket PC.

Windows Mobile 5.0

Microsoft's latest operating system, Windows Mobile 5.0, offers many improvements; the most important being persistent memory. All data and applications are stored in flash memory which will survive a complete battery rundown. No need to leave it on the charger when you go away for a 2 week vacation. Just charge it up upon return and your data will still be there! WM 5 devices still have RAM, which is volatile and faster than flash ROM. But RAM is now used in the same way your PC uses it: running programs are loaded into RAM and operating system files are cached there to improve response times. You can no longer install programs or files into RAM, only flash ROM. Since the device need not power RAM at all times, battery life is improved by approximately 10%.

Windows Mobile 5's improved user interface makes some tasks a bit quicker and more intuitive and Internet Explorer, Word Mobile and Excel Mobile are more capable. In addition, you get a Mobile version of PowerPoint which can open and run but not create or edit PowerPoint presentations. To learn about Windows Mobile 5's new features in detail, read our article here.

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• 這裏有一個網站，有更多的信息： -cellone- ♂ (22 bytes) () 04/10/2007 postreply 19:33:25