So I just got a new phone. My contract with Fido was up, and I was just going to let it go and stick with my V360 till the Neo1973 is available in a really usable form, but my boyfriend decided he wanted a 6300 so I extended my contract and got it, and now he decided he doesn't want it really so I figured I'll use it rather than selling it.
It's a fairly nice phone: very thin and light, pretty snappy, has that lovely Nokia interface. It also has the one thing I was missing on the V360 - a decent audio player. The V360 almost does, but it doesn't let you sort by album and it doesn't support standard (m3u) playlists, so you have to create playlists on the phone for each album you transfer, which is a massive pain. The 6300 sorts by album, so it's a complete non-issue.
I made a quick patch for hal-info to support the phone (in USB storage device mode) as a music player, and submitted it upstream. Until it gets merged upstream and your distro's packages are updated, if you have this phone, just apply that patch to 10-usb-music-players.fdi (probably in /usr/share/hal/fdi/information/10freedesktop ), restart HAL, and whenever you connect the phone in USB storage mode it should be treated as a music player, and you'll be able to drag-and-drop songs to it with Rhythmbox, Banshee or Amarok (they'll be transcoded to an appropriate format on-the-fly). I love HAL.
With the help of several threads at HowardForums, I was also able to mostly de-brand the phone (restore the features Fido locks up, like the email client and MP3 ringtones) and upgrade it to the latest firmware, 5.50. De-branding is pretty easy: get NSS, plug in the phone, run NSS, click the magnifying glass, go to Tools and do a full factory reset, unplug the phone, restart it. To upgrade the firmware on a phone provided by a carrier like Fido, you also have to change the phone's product code to one of the ones used by the phones sold direct, unlocked and unbranded, by Nokia: the update applet refuses to recognize an update is available if you leave the product code as-is. There's a list of product codes here, I used 0537621. To change the code with NSS, go to the phone information tab, check the 'enable' button next to the Code field, type in that code, and click Write. Then you can run the Nokia Software Update tool (available from the Nokia U.S. or Europe site) and it'll let you upgrade to firmware 5.50. After doing that you may need to re-do the factory reset step.
Of course, all this stuff will destroy any data saved on the phone, so back up your contacts (to SIM card or to the Nokia Windows backup) first. The Nokia Windows tool identifies the phone by the product code, so either change the code before doing the backup, or backup before doing anything, then temporarily change it back to the original code once you've done all the upgrading so you can restore the backup.