LH has been officially promoting its status match program following the launch of LH Italia, and keeps extending the deadline (currently 'apply by 7/15 fly 2 LH/LX/OS legs by 7/31').

There is an extensive thread in the M&M forum on this. The relevant LH page is here, and the application form here.

If you have the time to fly the required two legs, this would be a no-brainer to secure a valuable LH SEN card valid till 2011 based on your DL PM. Even if you do not requalify for it (100K in one of your membership years is fairly steep unless flying up front where bonuses are generous), this will provide *G benefits for two years, and LH, which also happens to control BD/LX/LO/SN/OS, treats its own elites quite well (e.g. advance exit row assignments).

For reference LH is also matching status for residents of the Czech Republic, Finland, and Portugal.