Sony has been moneyhatting since the beginning. Considering all the deals Sony has done in the past, MS's timed exclusivity of the next TR is much less impactful.
Well look at that. Before half the gaming internet posters were probably even born, here's a snippet of TR2 partnershiping back in the late 90s...... And it even extended to TR3.
http://en.wikipedia.org/wiki/Core_Design
Tomb Raider[edit]
The company is widely known for the
Tomb Raider series, created by
Toby Gard and Paul Howard Douglas, which was released in 1996 and followed by several sequels. The success of
Tomb Raider and its subsequent sequels played a huge part in keeping
Eidos Interactive financially solvent.
After the release of the original
Tomb Raider, which had debuted on the
Sega Saturn platform ahead of the
PlayStation version (they had been developed simultaneously)
Sony Computer Entertainment recognised the game's popularity and the potential mass appeal of future
Tomb Raider titles. SCE offered Core Design and Eidos Interactive an exclusivity agreement, to ensure that the first sequel would not be developed for either the Saturn or the
Nintendo 64. The full terms of this offer have never been revealed. By making the PlayStation the only console with
Tomb Raider II, Sony Computer Entertainment was able to benefit by attracting new PlayStation owners leveraging
Tomb Raider as a
killer application and using Lara Croft as a marketing character alongside Sony's own
first party characters. Core Design also had the advantage of developing only for a single console, rather than several at once. This exclusivity agreement was further extended to cover the third game in the series. The fourth and fifth games in the franchise,
Tomb Raider: The Last Revelation and
Tomb Raider Chronicles respectively, were also released for the Sega
Dreamcast.