Summary: I love this PDA. I bought it as a backup for one that I've had for about 3 years - for when the battery dies and I have to send it away to be fixed. My LIFE is on this PDA so I never want to be without it. Calendar, contacts, memos, etc. I keep both PDAs sync'd with my desktop. My only complaint is that after I sync, I get a message that not all messages were copied. If I sync it again immediately, it's OK. Both of the PDAs have this problem.
Summary: I like the size and simplicity, as well as the dedication to a single purpose. But make sure that you buy at least three if you decide that this PDA is for you. The devices sometimes get into a snit, and even a full reset will not straighten them out. You have to put the Z22 on the shelf for a couple of months, waiting for the internal battery to completely (and I do mean COMPLETELY) discharge. After a couple of months, completely charge the Z22, and initialize.
Summary: The Z22 is a nice little Palm OS PDA. It has non-volatile memory which is not true of the other Zire models, and it has a pretty fast ARM CPU. The only downside is the small-ish low resolution screen, but those give it great battery life and a small overall size. Overall it is a very solid device with good battery life. If you need a Palm OS handheld PDA, than it is a good choice.
Summary: This PDA is so simple to use. I have been using Z22s for 10 years-this is my second one. My only complaint is that you can't add memory, but even that isn't a deal breaker. If I use this as an address book, notebook and a scheduler( I am a visiting nurse and keep track of patients with it) it's all I really need. I don't need a lot of games, which is what I'd add. A couple is enough.
Summary: I use it mainly for the calendar which synchronizes nicely with my Outlook (idem for my contacts). Works great. Nice that it recognizes handwriting and transforms it into typed text. Old school but great.
Summary: This is a good organizer for dates, contact information, and notes. It also comes with a game, mine came with Crazy Daisy which is fun. You can also download applications to use with the product.
Summary: This is my second Z22. I guess I dropped the first one once too often (oops!). This one came with a silicone case to protect it from my lack of dexterity. Seriously, I like this product. It's easy to use and very versatile. Hopefully I won't need to buy a third one!