
I've had a 20GB iPod now for about a year and a half and use it nearly every day, primarily during my commute to work and while I'm out walking. Prior to the iPod, I had a Rio 64MB player. The primary motivation for these players was not music, but rather for listening to audio books. I've been a member of
Audible.com for about 3 years and have a plan that allows me to download two books per month for $16. Audible books have greatly increased my ability to make use of what would otherwise be wasted time. I even have a special set of earplugs with speakers that I can wear under my helmet so I can listen while riding my motorcycle which is my main transportation mode during the months from March through October. I've even set up my plane so that I can patch the player into the intercom.

Lately I've been listening to
Podcasts, mostly on technology subjects. My favorites are from
KenRadio,
Leo Laporte,
Adam Curry, and
Make Magazine. I also listen to a few others for amusement like
Dawn and Drew and
The Cubicle Escape Podcast. It's a great way to pass the time and learn a few things. One of the most frequently mentioned players on podcasts is the iRiver, because you can use it to capture MP3s through its built-in microphone. I have a microphone accessory for my iPod from Griffin, but it sounds absolutely awful, turning all 's' sounds into 'th' sounds.
Some people actually create their podcasts with the iRiver and they sound great, so when I found a refurbished 512MB iRiver 795 at
ComptuerGeeks.com for $89, I decided to get one. Like my Rio, this device suffers from too many features without enough of a display or user interface to access them easily, but once you get over the learning curve, it really gives the iPod a run for the money. Today I used it to capture an audio presentation which I was able to upload to a podcast directory for some people who were unable to attend. I just kept it in my shirt pocket and it recorded the whole thing with no trouble at all. It's very light weight and gets about 20 hours from a single AA battery. Battery life on the iPod is somewhat unpredictable. Sometimes it tells me it's dicharged despite not having used it since it had been recharged. And then I have to charge it for at least 30 mintues before I can use it. So in some ways, having the removable battery on the iRiver has an advantage, especially if you run out of power when you're away from a charging socket. The iRiver is also much smaller and lighter, making it easier to drop in my pocket. The iPod is compact considering how much it holds but it's also quite heavy, almost too heavy for jogging or other high impact exercising. The iRiver has a tiny, high-resolution display, so it's probably better suited for someone under 40 whose eyes can make out the fine details.
I like using iTunes and find it to be much better integrated with the iPod than the iRiver Music Manager is with the iRiver. The iRiver software is much faster at recognizing the device, but it lacks iTunes ability to work with the metatags of the files conveniently; it uses filenames only. And you can't listen to books from Audible.com on the iRiver because it doesn't support the DRM (digital rights management) format of the audible files. The iRiver has only 2.5% of the storage capacity of the iPod, but you can still fit about 10 hours of podcasts on it and delete them as you finish listening to them, so it is well suited for podcast listening. Who knows, someday I may even record my own podcast on the iRiver...