For a quick news blurb level of info go here: Solar wind weakest since beginning of space age - Breitbart.com

For an in depth look at the issue go here: Solar System's Protective Shield is Weakening; Solar Wind Velocity at Record Low - Universe Today

The Ulysses space probe has been busy.  The latest reports show the level of solar wind to be at its lowest level since accurate reports began half a century ago.

Ulysses' orbit 2002-2008

There are some far ranging repercussions to this, some potentially good, some potentially bad.  Most not fully understood.

• The solar wind creates the Heliosphere.  If the solar wind is weaker then the Helioshpere will be smaller and weaker which would allow more cosmic rays into the solar system.  All things being equal we want less cosmic rays coming in, but the overall impact is unknown.
• The lessening of the solar wind will cause less drag on satellites and therefore allow them to stay in orbit longer.  Weird but true.  This reduces cost, potentially by a lot.  How much does one more day in orbit save an agency or company with a satellite there?  One more hour?  Multiplied by how many satellites?
• Rich's plan to create a solar wind powered spaceship has reached a snag.
• ?Global warming? - no idea.  My opinion with ZERO data to back it up is that, again everything else being equal, a reduction in solar wind will cause a cooling of some sort on the earth. 

Heliosphere - courtesy wikicommons.