Links

Applications

Mobile Gmaps - http://www.mgmaps.com/index.php

Opera Mobile - http://www.opera.com/products/mobile/operamini/

Pang - http://www.midlet.org/results.jsp?search=pang

Tastephone - https://tastephone.dev.java.net/

Design

Usable Products - http://usableproducts.com

Mobile Web Design: Tips and Techniques - http://www.cameronmoll.com/archives/000577.html

Tools

Windows

Eclipse - http://eclipse.org

EclipseME - http://eclipseme.org/index.html

PalmOS - http://www.palmos.com/dev/tech/java/developers.html#01a

Mac OS X

Eclipse - http://eclipse.org

http://mobiko.blogs.com/mutant/mac_osx/index.html

http://developers.sun.com/techtopics/mobility/midp/articles/osx/

http://www.justobjects.org/blog/?p=10

http://www.urbanhill.net/midp/

iPhone Hacking (from Leonard Lin)

http://iphone.fiveforty.net/wiki/ - original public dev wiki, good for starting low level / higher level dev

http://groups.google.com/group/iphonewebdev - *the* resource for iphone/ipod touch web dev

http://iphone.nullriver.com/beta/ - easy way to get started installing apps

http://iphone.natetrue.com/ - lots of src, binaries

http://www.modmyiphone.com/ - general news, files and guides

http://www.iphonealley.com/ - general news and files

Linux

Eclipse - http://eclipse.org

Multi Platform

J2ME Polish - http://j2mepolish.org

Obfuscators

Proguard - http://proguard.sourceforge.net/ (check out the alternatives page for more)

Retroguard - http://www.retrologic.com/

API

http://gotapi.com/ - GotAPI is a fantastic tool for searching through API documentation - including Java ME, Python, Ruby, PHP and many more.

http://uberthings.com/mobile/docs/midp2/ - MIDP 2.0 JavaDocs. Honestly, you don't want these. Just use GotAPI.

http://uberthings.com/mobile/docs/midp1/ - MIDP 1.0 JavaDocs. See comment above.

http://theoreticlabs.com/dev/ - Theoretic Labs is run by a supersmart Java ME demon, this is their development links page. Useful.

General

http://microjava.com/

Java ME Devices - http://developers.sun.com/techtopics/mobility/device/

Blogs & Forums

Biskero - http://biskero.org/

C. Enrique Ortiz Mobility Weblog - http://www.cenriqueortiz.com/weblog/

Engadget Mobile - http://engadgetmobile.com

Fierce Developer - http://www.fiercedeveloper.com/

GSM Arena - http://gsmarena.com

Howard Forums - http://howardforums.com

Mobilitee - http://mobilitee.org/

Moconews - http://www.moconews.net/

NGPhone - http://ngphone.com/

Pasta & Vinegar - http://tecfa.unige.ch/perso/staf/nova/blog/

Phonescoop - http://phonescoop.com

Pondering Primate - http://theponderingprimate.blogspot.com/

Series60 Multimedia Blog - http://blogs.s60.com/s60multimedia/index.html

Textually - http://textually.org/

Tom Hume (Future Platforms) - http://www.tomhume.org/

Wikipedia - http://en.wikipedia.org/wiki/Mobile_development

Application Providers

GetJar - http://www.getjar.com/software/

Handango - http://handango.com

MidletReview - http://www.midlet-review.com/

Play online - http://www.midlet-review.com/index?content=playonline/play

Midlet.org - http://midlet.org (lots of free MIDlets here)

Carriers

Wikipedia has a fantastic list - http://en.wikipedia.org/wiki/List_of_mobile_network_operators

MVNO's - http://en.wikipedia.org/wiki/Mobile_Virtual_Network_Operator

Manufacturers

Danger

Corporate - http://danger.com/

Developer Site - http://developer.danger.com/

Motorola

Motorola - http://motorola.com

Developer Site - http://developer.motorola.com/?path=1

Nokia

Nokia - http://nokia.com

Developer Forum - http://forum.nokia.com

Software Update - http://www.nokia.co.uk/nokia/0,1522,,00.html?orig=/softwareupdate

Palm

Corporate - http://www.palm.com/

Developer Site - http://www.palmsource.com/developers/

Qualcomm

BREW Developer site - http://brew.qualcomm.com/brew/en/developer/overview.html

Samsung

Corporate - http://samsungwireless.com/

Developer Site - http://developer.samsungwireless.com/singlelogin/

Samsung Mobile Developer Club http://developer.samsungmobile.com/Developer/index.jsp

Sony Ericsson

Corporate - http://sonyericsson.com

Developer Site - http://developer.sonyericsson.com/site/global/home/p_home.jsp

Mailing Lists

Mobile Design - run by Brian Fling from BlueFlavor - http://mobiledesign.org/

Mobile Monday - http://mobilemonday.com

Mobile Monday NY (Full disclosure: I'm one of the co-founders) - http://www.mobilemonday-ny.com/

Mo List - a low traffic (lately) overview of mobile trends - http://www.mobilejones.com/archives/2129/