This morning I went to take the exam S90.01 and passed without too much difficulties, 96/100 isn't that bad I guess :-)

This exam is to test your basic understanding of Service-Orientation, here is a list of the things you have to be familiar with:
- services and related stuff (contracts, inventories...)
- delivery lifecycle
- the 8 principles
- the 7 strategic goals and benefits
- the 4 characteristics

You don't need to memorize them or know every aspect of them but be familiar with the terms and understand their meaning and the relationships between them.

The exam consists of 50 questions, these can be true/false, single choice or multiple choice questions. The pass rate is 80 and you have 1 hour to finish, this is more than enough time. I went over the questions in about 30 minutes then went over them again and was completely finished after 45 minutes.

As for the study materials, basically you have enough with the book SOA: Principles of Service Design. You don't need to read the entire book but I suggest you do this anyway, compared to the other books this one is still a modest sized book and you'll need it for the other exams as well. I also bought the course materials and this is quite handy to repeat the course once you read the book, you can go through it in 1 hour to refresh your knowledge.

Hope this was useful and as always, if you have any questions just shout (but don't ask to get sample questions).