I just finished the openlapi implementation on n900. there is 3 files in the tar archive. Here is my set up of how to run in n900.
openlapi.jar -> put in /opt/java
openlapi-jsr179.jar -> put in /opt/java
libgpsJNI.so -> put in /usr/lib (you need to put in this folder)

if you run the next lines you will have midlets using the location api

CLASSPATH=/opt/java/microemulator-3/microemulator.jar
CLASSPATH=$CLASSPATH:/opt/java/openlapi.jar
CLASSPATH=$CLASSPATH:/opt/java/openlapi-jsr179.jar
export CLASSPATH
java org.microemu.app.Main

I get the trekbuddy (http://www.trekbuddy.net/) working, but unfortunately I couldn't get google maps used the location. I will set up a garage project and upload the source files later. Please check it out and report if it is working for you too.

I opened a garage project and put the source files there:
https://garage.maemo.org/projects/openlapi/

I don't have much time now, if anybody wants to continue the work I can hep them to setup the environment.

Any news on this? Doesn't work for me with most applets.

"if you run the next lines you will have midlets using the location api

CLASSPATH=/opt/java/microemulator-3/microemulator.jar
CLASSPATH=$CLASSPATH:/opt/java/openlapi.jar
CLASSPATH=$CLASSPATH:/opt/java/openlapi-jsr179.jar
export CLASSPATH
java org.microemu.app.Main"

Where i can run this lines and how?

Just put them straight into Xterm. Are we shouting?

Sorry, i forget -Big font like shout))))
Can i put them copy\past or they 5 diferent commands!?
when i put them into *.sh-file i see error (bad varifble nameine 4:CLASSPATH)

They're all different lines yeah.

Have you copied it exactly? And chmod +x the .sh file?