Will I have to work on Saturdays? <a href="http://mikesilverman.com/peace/index.php/prevention-medicinecom-ef0f.pdf">promisehealthcare.com</a>  Now the question is turning to how long BlackBerry has to go. On Friday, the company said it will cut 4,500 jobs, roughly 40% of its 11,000 total worldwide, adding to 7,000 jobs cut in the two previous financial years. It will reduce its future phone portfolio from six to four.