The magnet COULDN'T of made the plane crash:
1: If the magnet is so powerful to pull a plane out of a sky, it would've complete crippled all the hatches on the island
2: Planes are made out of aluminium, except maybe some tools and the engines, but the engines were still running when the plane crashed, they would've just torn of if so.
3: The plane wouldn't of split, it would've just gone straight into the hatch, unless the magnet stopped just before it hit the island, but still, it wouldnt of split.
Also, in 'The Pearl' orientation it sais (when edited) 'Once you have finished your three weeks, make your way to the Pabla.....'
This is the pabla ferry bay (were Micheal left from). Another point is the 4 toed Statue, this shows people were on the Island before Dharma and the Others, as there was a 4 toed god in greek mythology... etc.
1 more thing is the anomly message that came up on the portugese' pc... same prompt as the Swan/Pearl... but.. wasn't using an Apple II, various background things show different OS', like Linux, Unix, Mac and Windows, and then the prompt apple II, and I think some MS-Dos, although their computer appears to be windows... so maybe its a mixture of different OS'..