Unlike what the title would suggest, the "moving to Texas" part was basically immaterial to the company's failure.
They never had any product to ship to begin with and were basically subsisting on loans and venture capital money to continue bullshitting with a theoretical product. Add in some dodgy regulatory practices resulting in fines from the Government and questionable business practices. When the funding dried up, they withered like a sponge in the California (or Texas) sun.