Looks like you can’t download the Keynote from Apple yet. Had some problems finding it, but someone from MSJ did his homework and made the effort capturing the thing (548MB).
wwdc07.part01.rar:
http://www.mediafire.com/?5omwhysjtwc
md5: 581b777297c9539b358e04c7364b2061
wwdc07.part02.rar:
http://www.mediafire.com/?9g14t1jym0n
md5: 92dbe82b2a864e79d520d7adef552577
wwdc07.part03.rar:
http://www.mediafire.com/?betpngdw91x
md5: beb0e14109b1ed093f5219ee4ed6cc48
wwdc07.part04.rar:
http://www.mediafire.com/?13dl09j1nux
md5: 168e2d789f1d1136f816209623bc33b3
wwdc07.part05.rar:
http://www.mediafire.com/?bonwjgydzud
md5: ba2c0553b7e4a4b44841f5a684088d35
wwdc07.part06.rar:
http://www.mediafire.com/?0pdpdexphhn
md5: 0d275862e6926a060ecfef7f79dc3ce8
wwdc07.part07.rar:
http://www.mediafire.com/?6gzclyhpp1n
md5: 60435260066304cf4107353c3ced7ab7
wwdc07.part08.rar:
http://www.mediafire.com/?ciuwlxt0tzx
md5: cf355d176b7dab295493311f0caf841f
wwdc07.part09.rar:
http://www.mediafire.com/?bjd4ynlysbt
md5: bd7767b1257fd3282414b238b5c97c18
wwdc07.part10.rar:
http://www.mediafire.com/?cnihzzsttxy
md5: ce7c71a103d747ce588a5c6c5ec58abb
wwdc07.part11.rar:
http://www.mediafire.com/?0ddgwx14ydg
md5: 016f6231f35b2f9c3a05a88f869db644
wwdc07.part12.rar:
http://www.mediafire.com/?eom1wgji2t3
md5: e5b8b21f3e1e4098a2c0f4b61faa1bcb