Oracle 10g Express - any danger for Postgres?

http://www.oracle.com/technology/software/products/database/xe/index.html
http://news.zdnet.com/2100-3513_22-5920796.html

'Oracle intends to release a free version of its database, a reaction
to the growing competitive pressure from low-end open-source
databases.'

Your thoughts?

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Best regards,
Nikolay