Gian, MyEclipse can offer Ruby support by way of adding RDT to it or any other Ruby eclipse plugin, but we don't offer additional custom tooling for it. [ August 03, 2007: Message edited by: Riyad Kalla ]
I'm curious to know this, because we recently faced the dilemma of building in J2EE or Ruby on Rails.
Riyad is taking a bit of vacation time so I'll try to answer for him.
Basically, the Ruby market is one we are continuing to watch to gauge demand as it matures. It's certainly an interesting technology. However, at the present time the world-wide Java EE tools market is still several orders of magnitude larger than the Ruby tools market and it's this size difference that drives our strategic decisions on where we allocate our development resources. That said, we constantly re-evaluate our product focus based on demand from our large user community and tweak the product mix accordingly.