At the Apple World Wide Developer’s Convention, Steve Jobs highlighted Moo Cow Music’s Band for the iPhone as part of his keynote speech.
Band lets you record tunes on your iPhone or iPod Touch. It’s one of the many iPhone music software apps we’ve featured previously. Expect to see iPhone virtual instruments, iPhone virtual studios, iPhone [...]

Intua has introduced BeatMaker, a new iPhone virtual studio spired by hardware beat boxes, loop samplers and software sequencers
Features list:

16 triggerable pads with polyphonic control
Automatic sample slicing on multiple pads
Edit pads individually
Duration and tonal controls
Reverse
Gain
Output selection (Dry, FX Bus1, FX Bus 2)
Graphical sample bounds editor
Instant muting
Muting individual pads makes your song breathing
Sample [...]

Apple France has a look at Jean-Michel Jarre and his use of Macs and Logic Pro.
Here’s a short excerpt, through Google automatic translation:
Jean-Michel Jarre says his passion for the Mac
You are using Apple products for a long time. De quels matériels disposez-vous ? What materials do you have?
I am a big fan of Apple [...]

If you’re one of the beautiful people, planning your trip to @#$# Ibiza on your iPhone, you may want to check out iPhoneIbiza.com - an iPhone guide to Ibiza.
It’s got info on:

Club tickets
Gas stations
Restaurants
Free WiFi Hotspots
Weather

Joining an rapidly growing number of iPhone music apps is the IR-909, a software version of the classic Roland TR-909 drum machine:
IR-909 is a drum machine for the iPhone inspired by the Roland TR-909. IR-909 features a 16-step sequencer, 4 patterns and 8 different drum sounds. To change the value of any property in IR-909, [...]

i3L (pronounced “i thrill”) is a freeware music controller app,  developed using Max/MSP from Cycling74 and is a support application for akaRemote by Masayuki Akamatsu.
And guess what? You can use it to control Ableton Live!
i3L receives pre-defined UDP messages from akaRemote.app running on the iPhone, scales the values to MIDI, and allows you to configure [...]

Telekenisis is a tool for remote control of Mac application using your iPhone.

The iPhone seems to becoming the new “because it was there” controller for Ableton Live.

Moo Cow Music’s Band lets you record tunes on your iPhone or iPod Touch.
Do you think these iPhone apps are anything more than music toys?

AT&T hotspots are now offering free Wi-Fi access to iPhone users.
Barnes and Noble, Starbucks and presumably all of AT&T’s 71,000 hotspots are now offering iPhone users a custom portal to access free Wi-Fi. A special iPhone formatted page asks for your mobile phone number. Once entered, you can access the Wi-Fi access for free.
MacRumors has [...]

This iPhone synthesizer video is making me lookforward to iPhone apps in iTunes.
FYI - this is just the latest of many iPhone music software stories.

Emusictips has an explanation of how to control Ableton Live with your iPhone.
This type of thing is fascinating to see - but will it ever be more than a gimmick?

Looks like we’re going to be seeing a whole crop of iPhone music applications in June.
MixMeister has announced MixMiester Scratch for the iPod Touch or iPhone. MixMiester Scratch let’s you scratch your music tracks:
Features:

Comes with preset vinyl scratch sounds to choose from
Scratch on top of any existing song on your iPod Touch or iPhone
Control volume [...]

ProRemote lets you control Pro Tools from your iPhone.
Because you can.

The iBand in action.