I used to love Palm Treo personal communicators like the Treo 755p. My wife and I had his and hers Treo 650s until June when I bought my iPhone.
However in 2008, I cannot recommend a Treo in good conscience to anyone who does not work in an industry where Palm or Windows Mobile applications are a work necessity (see Handhelds from Palm Still Make Sense in Medicine as an example).
I want to take a moment to salute Jamie Ledino of PC Magazine for telling readers in no uncertain terms to avoid buying the Treo 755p:
It's been eight months since Palm released the mildly updated Sprint Treo 755p. Now Palm and Verizon are selling the same two-year-old phone and even pricing it like a new handset. The 755p has plenty of virtues, which I'll get to in a moment. But look at all of the contemporary features this allegedly new-for-2008 smartphone is missing: multitasking, GPS, mobile TV, stereo Bluetooth for music, a light-sensing display, voice dialing over Bluetooth, Wi-Fi—and the list goes on....
In the end, Palm and its partners Verizon Wireless and Sprint are pricing this phone similar to state-of-the-art smartphones. You can't just say that the Treo 755p is a stable but feature-poor smartphone. The PalmOS isn't in the same league with any of the current versions of competing smartphone operating systems except in terms of selection of third party applications. Palm should focus on Windows Mobile devices until its next generation PalmOS is ready. (According to what I read, that's first quarter of 2009!)