ob1 - I think the gist of this post is that you'd be safe to upgrade, especially if you're only worried about 15% of your user base. If you keep a spare phone/touch loaded with 2.2.x, you can still compile and deploy to it for testing. It's just the simulator that has to run 3.0 (even if the code is compiled for 2.x).

Personally, the new compiler is worth the upgrade for me. But to each his own.

I am not updating. At least 15% of my customers are on 2.2.x according to Pinch.

That's exactly what I'm worried about. Luckily I'm developing on two machines - one of them is still running Xcode 3.1, so I can still run the 2.x simulator. So far, there seems to be no difference. I'll update if I ever find any discrepancy.

@lindgrenM, thanks - your drive isnt one of the ones that are suspected of failing.

@eshirt, sounds pretty good. Too bad about Simulator only being 3.0, its probably ok - almost everyone is on 3.x now. But I do wonder if I test a 2.2 on the Sim if it could fail on an actual 2.2 device even if it ran well on the Sim.

SL is working great for me too. Xcode 3.2 is great and worth the upgrade price alone! As lindrenM said, you can still develop for 2.2, but one thing to note is that it only ships with the 3.0 simulator. You have to set your deployment target and base SDK manually to compile against the 2.2 SDK.

Obviously it's always better to test on a device running your targeted software, but I assume that as long as your project compiles with no errors w/ a target of 2.2, it doesn't matter what version of the simulator runs it.

Has anyone read up on any issues regarding this?

No problem:

MATSHITACD-RW CW-8124:

Model: MATSHITACD-RW CW-8124
Revision: DACK
Serial Number:
Detachable Drive: No
Protocol: ATAPI
Unit Number: 0
Socket Type: Internal
Low Power Polling: Yes
Power Off: No

cool, in "System Profiler" can you tell me the Model of your DVDRW? Its probably in hardware->ATA

It was very smooth for me on my Mini. No problems whatsoever. You can still develop for 2.2.

Ive been putting it off bc I have one of the superdrive models from here:

http://www.appleinsider.com/articles/09/09/28/apple_investigating_alleged_issues_with_superdrives.html

Anybody have trouble upgrading to SL, or upgrading to the latest xcode? Can you still dev for OS 2.2? (I think Apple has dropped some of the earlier OS versions by now)

thanks