Apple must have heard my pleas, as they've released both an iSync update compatible with my new phone, and a Mac OS X update (10.4.2) that fixes a bunch of the Dashboard slowness that I posted about. — Even though the widgets still take a while to populate with data… at least it's not lagging the entire computer like before. 👍🏻
The iSync update introduced official compatibility with my new cellphone, the Sony Ericsson K750i. This phone's only available in Europe and Asia at the moment, but I just picked up a grey-market one off of eBay for about $400 USD.
This phone is awesome… it has a 2-megapixel Cybershot sliding camera on the back (with LED flash), and it takes both photos and videos and saves them onto an included 64MB Memory Stick Duo Card.
Aside from the usuals (like Bluetooth, an infrared port, and internet tethering), there are some other interesting features like 3D Gaming (it comes with a simple flight simulator and a tennis game), an FM radio, MP3 and video player, and the ability to use the camera's flash as an LED flashlight… but I'm not sure if any of these things are really things that I'd use regularly. — Also, there's the ability to print photos wirelessly via Bluetooth, but wouldn't you just do that from your computer?
I took some photos with the camera, and some of them came out pretty poorly to be honest, so for best results you should still use a real camera with a better image sensor. Otherwise, I recommend this phone. — In some areas with older GSM towers, you might experience worse reception since this is a European model that doesn't support every cellular band currently in use in the USA, but so far I've honestly had zero problems. Don't worry, it's awesome. 🙂