so from that we asigned teams to do together. this is one of the things that came out.hink it's absolutely huge. it's landmark. it takes the best of apple and the best of ibm and put those together. there is no overlap, no competition. we agree on the top three things. one is growth this idea we talked about remaking business and imagining professions, so this is all about unlocking mobility in the enterprise and value that hasn't been there to date. the third thing we will do together is addressing the no. 1 inhibitor. it's been things like security. so we're really providing value all the way across those issues. >> let me ask you, it's obviously a big push here by apple into the business market. when you think about that, tim, how big of an opportunity is that for apple enterprise? >> well, i think it's big or i wouldn't be sitting here today. you know, this is a multi-year journey for us. we started investing in ios back in ios 12, adding enterprise features. through the period of time between where we are today. we have over 90% of the global 500 by the reality is