I don't know how valid this is but this recent paper suggests compatibility between Bohmian mechanics and Special relativity:
"In addition, it is sometimes objected that the Bohmian interpretation is nonlocal, but this is not really a valid argument against this particular interpretation because any theory (compatible with QM) that assumes that single reality exists even without measurements must necessarily be nonlocal [22]. Finally, due to nonlocality, it is frequently objected that this interpretation is not consistent with relativity. Nevertheless, various partial steps towards a relativistic-covariant formulation of the Bohmian interpretation of many-particle systems have been done in [23] and [20]...To conclude, all this shows that the Bohmian interpretation is well motivated, relativistic covariant, and compatible with the relativistic invariant probabilistic interpretation (13)."
http://xxx.lanl.gov/PS_cache/arxiv/pdf/ ... 1905v2.pdf
Also I've come across papers, including Bohm's papers, suggesting that the de Broglie-Bohm theory makes concrete predictions that in extreme circumstances are different to those of orthodox QM, and so it can in principle be tested. Here's an interesting and comprehensive paper on some of the virtues of Bohmian interpretation:
Why isn’t every physicist a Bohmian?
http://xxx.lanl.gov/PS_cache/quant-ph/p ... 2119v2.pdf