SQL Anywhere's management console (called Sybase Central), has a database migration wizard that works with MySQL data sources. All you need is an ODBC data source to your MySQL database. In addition, here is a technical document which discusses migration from MySQL to SQL Anywhere:
http://www.ianywhere.com/whitepapers...ysql_asa9.html
It is focused on migrating from MySQL 5 to SQL Anywhere 9, but will also work to migrate to SQL Anywhere 10.