cambridge textbook will be released - well, uncorrected proof copy for inspections etc - around august i think.
same authors, new topics added. i've got the table of contents somewhere, cbf finding it. they released it so late because bill pender (and lots of other nsw maths teachers) were hoping to get last minute changes and to stop the change in the syllabus as much as possible.
as for maths in focus - it's by far and away the most widely adopted textbook. it's fine to use - the guys on these forums are far too elitist. it's arguable that cambridge textbooks are too hard in many cases, with questions that will never appear in the HSC. fact: it isn't widely adopted by schools. fact: the new cambridge textbook is adding in a LOT more level 1 questions to make it more approachable and relevant, in recognition of the previously stated fact. fact: even if you use the cambridge textbook, you'll be well advised to get practise with past papers anyway.
advice: maths in focus is fine to use if your school is using it. just make sure you do heaps of past paper questions - which you should be doing anyway. use the textbook to learn the concept, then practise applying it using past papers. you can use any textbook you like - the maths in focus textbook isn't that poor, and it's worked examples are the best out of any of the textbooks by far and away - with the exception of, perhaps, the coroneos ones.
and i'm done being an opinionated pig
come @ me
btw; it fascinates me how much this topic comes up. we should just sticky a generic moderator post summarising the general feeling of the forum. heh. and i get sucked in every time too lel.