I don't really see a problem using several languages, of course depending on how much and what you're doing with them. Alternating soft and hard layers is well

I don't really see a problem using several languages, of course depending on how much and what you're doing with them. Alternating soft and hard layers is well suited to a lot of tasks, with a more dynamic "scripting" language and something closer to the metal. Maybe have a GUI in something different, too (esp. if we're talking 'bout the web), and maybe some build/deployment/data munging... I'd much rather do that than have four different data formats or complicated protocols (i.e. Java and it's rat's tail of XML and OO-RPC variants, or shudder some abomination that combines ASN.1 and CORBA).