I really like my new iPhone 3G however I came across a small problem that was quite hard to track down and solve, hopefully this guide will help someone else out there having the same frustrating problem - music being greyed out when connected to another computer.

Previously I synced my music, at home, on my desktop computer, using an iPod Classic in "Manually manage music" mode. When I got to work on my second machine, my laptop, I was able to plug this in and have access to my music (for playing, not copying) and able to play over AirTunes.

No such luck with iPhone, the same technique simply doesn't work. At first I thought it was related to the iTunes Store authorized accounts, I made sure both desktop and laptop were authorised, but my music was still greyed out on the secondary machine, doh.

After alot of reading around I discovered that this might actually be a bug with the iPhone/iTunes combo, as it doesn't seem to recognise/remember it's in "manual" mode when you connect to another computer, the trigger that is supposed to allow you to play music on another machine.

After even more reading around I found a technique that works and it's really easy to do. From your main machine (the machine that currently syncs with iPhone) make a copy of both "iTunes Library.itl" and "iTunes Music Library.xml" from you iTunes music directory and overwrite them on your secondary location, viola!

Introducing the all-new MacBook and MacBook Pro. New design. New features. New technologies. All engineered to standards that don't even exist yet.

Precision aluminium unibody enclosure.
Machined from solid aluminium, the new MacBook and MacBook Pro are thinner, greener and more stunning than ever. Learn more

Ultrathin LED-backlit display.
With seamless glass and instant full screen brightness, everything you see is flat-out spectacular. Learn more

Advanced NVIDIA graphics processing.
NVIDIA delivers faster, more powerful graphics performance to the new MacBook and MacBook Pro. Learn more

All-new, smooth glass Multi-Touch trackpad.
The spacious new Multi-Touch trackpad gives you even more room for clicking and for Multi-Touch gestures.

Okay, I try not to be a sucker for new Apple products but the new Macbook does seem to have improved every single piece over its predecessor.

Sadly that only means one thing, I want one.