Utilize the input text as a context reference, choose the right relationship between Surface Pro and Microsoft from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Microsoft is expected to unveil devices such as the Surface Pro 4 tablet, the Microsoft Band 2 wearable fitness tracker and the latest Lumia smartphones at the event.

Answer: developer