Globalstar Inc. (AMEX:GSAT) shares are trading higher Monday after the company on Friday announced an extended services agreement with Apple Inc. (NASDAQ:AAPL), which includes plans to build and launch a new mobile satellite services (MSS) network. What To Know: Under the new terms of the updated services agreement, Apple will prepay up to $1.1 billion to Globalstar, funding the construction, launch and operation of the new MSS network. The funding will cover costs for new satellites, expanded ground facilities and broader MSS licensing globally. Apple will also invest $400 million to acquire …