RoHS compliance - having a good impact or not?

[JoeH]

I would say improper assembly and/or failure to change the assembly to take into account the lower flexibility of the near-zero lead content solder. Circuit boards that flex less, or have more supports to limit flexing are the way to go. Just changing out the solder to lead-free solder might meet RoHS, but is not sufficient to make a durable assembly.