[intellectronica]

Consider whether you can do this move with everything above board. These two companies (and more importantly, the people working in them) have a business relationship to maintain. You want to be a positive part of that story, not the one creating problems for everyone.

Ideally, you'd want to be able to discuss this move openly with both the target company and your current employer and get everyone's blessing. If not, there's a risk that if the relationship between the two companies sours because of your attempt to move, you'll be the one thrown under the bus.