Bro,not so simple lah.
The Malaysia GE2008 was historical not because of Pakatan,
It was because of the than PM Badawi's gross mishandling and total inefficiency.He slept through most of his parliament sittings which earned him the the nick name of "bodohwi'...Even Dr.Mahathir who held the No.1 in UMNO membership resigned in protest.Than the infighting among UMNO warlords and the infightings between UMNO,MCA and MIC.So much so their economy crawled.And the law and order in the country broke down.Where triads were partnering with police chief ,in businesses.
To tower it all,the HINDRF ,a protest,organized by Malaysian Indians who were seething because their temples were demolished for no reasons,...for the first time in the history of the Malaysia,like the people's power in the Philippines during Marcos,ordinary people took to the street in protest in massive numbers.Followed by the extreme police brutality.Which became a public knowledge telecast-ed on the youtube,all over the globe -to the horror of decent man and woman.The result?Indians who had traditionally voted for UMNO/MIC/MCA coalition,in GE 2008,for the first time in history-as one,the entire Malaysian Indians voted against BN....so much so that even Samy Veloo,the president of MIC for more than 20 years and a important cabinet minister whom even Dr.M dares not upset--lost to a novice in the GE2008.
And the fact the president of Gerakan--Tan Sri Dr. Koh Tsu Koon,who traditionally ruled the Chinese majority Penang,lost to an Indian.
Such was the political tsunami of Malaysia's GE 2008.
Pakatan simply riode on the massive discontent.