Need to migrate SQL Server to MySQL

I have two suggestions:

1) I hate bringing up commercial products but there is a $49.00 tools to Migrate MSSQL to MySQL

2) Try MySQL's MSSQL Migration forums for further suggestions

UPDATE 2011-06-03 18:03 EDT

There is an old product that went EOL back in January 2010 called the MySQL Migration Toolkit. If you can get a hold of it, you can use it.

UPDATE 2011-06-03 18:06 EDT

I found the archives !!! Here is the MySQL Migration Toolkit

UPDATE 2011-06-03 18:11 EDT

Here is the MySQL Migration Toolkit Overview

UPDATE 2011-06-03 19:08 EDT

Another commerical product ($29)

UPDATE 2011-06-03 19:30 EDT

Here is a list of Freeware tools that Migrate MSSQL to MySQL.

UPDATE 2011-06-15 17:47 EDT

Get the WhitePaper (PDF) from Oracle on the Guide to Migrating Microsoft SQL Server to MySQL (Still Commercial)

UPDATE 2012-08-21 01:24 EDT

According to this MySQL WebPage, the section MySQL Workbench: Database Migration Wizard claims that the MySQL Workbench has the capability of Migrating DB Objects from SQL Server to MySQL.

Based on Marian's suggestion, I found this answer about replicating in the other direction by setting up the MySQL server as a linked server in MS SQL Server. With MySQL set up as a linked server, I can run SQL queries on both databases at the same time, which provides exactly the functionality I needed to solve this problem.

MySQL Workbench can do this:

http://dev.mysql.com/downloads/workbench

It can be installed directly on the MS SQL Server machine (speed advantage!), which needs to be able to access your Ubuntu MySQL Server.