Here there and everywhere:
Paul Flessner of Microsoft has announced a new product -- SQL Server Everywhere Edition. It aims to provide “a lightweight, compact, but rich subset of the capabilities found in other SQL Server editions.” The new package will be able to synchronize with other SQL Server editions. It will also use the same programming model that other editions have.
The first community technology preview or CTP of SQL Server Everywhere Edition is planned for this summer, with final release before the end of the year.