By dannycoward on Jul 20, 2009
Most new feature phones now have Bluetooth, and so most support the Java APIs to allow Java (and JavaFX) applications to drive it. And as you can see in this survey of Java ME tools, all the major development tools for Java ME phones support the APIs too. You may also have noticed some rather naughty uses of it too.
When the phone manufacturers finish up the next version of Java ME for feature phones, more of them will support Near Field Communication (NFC).
Leaving applications that need to transfer things like love notes, wedding invitations, baby photos (possibly in that order) a choice of whether to use Bluetooth or NFC to do it.
Check out this article to see the merits of each approach.