The Palm Centro was recently reviewed as having superior reliability. Especially considering the feature of being able to talk while charging and not interrupting any call if unplugged from charging.
There are many different types of palm phones. There are a slide palm phones such as the Pre 2. A flip palm phone such as the Treo 270 or a normal smartphone such as the Centro.
Palm manufactures great reliable cell phones with a slew of features. It cannot however compete with the iphones feature set, it would be better to just get and iphone.
Digital phones are more reliable than analog phones. The digital signals are easier to produce and the technology is more reliable than that of analog signal.
The Android phones are very reliable. They are actually one of the most popular smart phones and they are constantly getting new types of apps.
The first Palm phones were introduced into the market in 1996. The technology has been surpassed by other, newer phones but some people still buy this model.
Amazon or ebay
Stand alone Palm Pilots do not vibrate, however smart phones that use Palm OS can vibrate.
While most newer phones are switching over to 4G data networks, there still remains some options in the 3D world. Check out Palm's Pre and Pixi phones through Verizon. Both are unique phones running the Palm OS operating system on the 3G network.
Samsung offer cheap and reliable phones. They don't have as much features as others, but they do have cheap prices and don't break as often as others.
Smart phones, I-Pads
The Palm operating system was designed for use in Personal Digital Assistant devices in 1996. The Palm system is used in PDA and smartphones sold by Palm and Sony.
The Palm Centro runs the palm operating system. It is very robust and you can find a lot of downloads for it. The Blackberry is a comparable device.