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I just can't find an up-to-date chart about which mobile devices support which Java Micro Edition version.
I'm especially interested in Nokia smartphones and their support for the new JME 3.0.
(I wonder that Sun doesn't seems to provide such information.)
Please, provide me some links, if you know any!
EDIT: I'm probably mixing things up:
MIDP seems to be the mobile Java platform, while
J2ME 3.0 is a SDK for it, right?
WURFL contains information on which phones have J2ME support, although currently in only covers MIDP 1.0 and 2.0. There's a very handy WURFL query interface at http://wurflpro.com/
I think almost all phones come with at-least MIDP 2.0 nowadays, at-least in US. I am pretty sure thats the case with a lot of phones. However, one of the ways to find out for sure is to got to the wireless carrier's website, get the list of phones and verify the MIDP info from the manufacturer's website. Thats what I would do.
Another good resource is the FPC Bench result database: http://www.dpsoftware.org/filter.php.
The site provides a JavaME benchmark application which checks various features and APIs (JSR). The result database contains the results of these benchmarks for free for a wide range of devices. If your device is missing, you can downlaod the the benchmark application, run it on your phone and upload the results.
Nokia device specs, including supported JSRs: http://www.forum.nokia.com/devices/
You can also have a look at benchmark results as they sometime give a good indication of what is supported on a given phone:
www.jbenchmark.com
One fairly large curent issue is whether the phones you want to target support MIDP 2.1 (easy to test with a 2.1 helloworld application), like the recent Sony-Ericsson and Nokia handsets.
That version is associated with Mobile Service Architecture (JSR-248), an improvement over Java Technology for the Wireless Industry (JSR-185) which specifies APIs that a handset should support.
Another good devices database is deviceatlas.com