First of all suicide is not what is referred to as ultimate unforgivable sin.
Second of all there is no ultimate unforgivable sin, there are transgressions that make it very hard, yet all trangressions and defilements may ultimately be removed.

Thirdly Jesus did not commit suicide.

Perhaps it was one of his foremost disciples one whom he had much love for and who also had much love for Jesus who out of love and compassion helped Jesus to conquer death thus showing us all the possibilities of same. "Do quickly what you have to do." these were Jesus' instructions to Judas at the supper table.

Perhaps Judas was not as the cannonical gospels suggest a betrayer and an evil person who betrayed Jesus to the SAnHedrin. Many scholars now recognize that the word translated as betrayed actually is better translated as handed over yet the word betrayed is more often used in reference to this act. This means the whole theology of Jesus dying for the sins of man is nullified.

Perhaps as other extrabiblical sources indicate, Judas was an elite amongst the disciples and had more gnosis of the true gospel than did the less advanced Peter or the Johhny come lately pretender apostle Paul who devised his own religion using Jesus as a god. The gospel of MArk has judas haging as his death, I believe MArk has him falling and spilling his guts asunder. IN truth he appeared to have been stoned to death by the other disciples.

It is a very compasionate and deeply knowlegeable man who can sacrifice himself for another as Judas did perhaps with Jesus' instructions. This is not equated with suicide but with unlocking the secret to escaping the bodies prison and entering fully into the Kingdom. Perhaps Judas in this act was a divinely inspired instrument. Interesting how much needed information on Judas has been left out of the canon. More can be learned from the recently authenticated gospel of judas
http://news.nationalgeographic.com/news/2006/04/0406_060406_judas.html

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