On https://i7lp.integral7.com, if you go to
"Certification Progress" and click on the link "Sun Certified Mobile Application Developer for Java 2 Platform, Micro Edition, Version 1" (besides the blue square) you'll go to a page that shows the status of your certification and the path of the tests you took to get it.
On this diagram you see:
(310-110) Sun Certified Mobile Application Developer for the Java 2 Platform, Micro Edition, Version 1. Always valid.
So this test is "Always valid"
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