Apple’s market capitalization (~$218.2 billion today) has been higher than Wal-Mart’s (~$191.5 billion) for about the last three months (see chart below), which is especially interesting considering that Apple’s market cap was less than $10 billion in late 2003 when Wal-Mart’s (WMT) value was almost $200 billion. Apple (AAPL) hasn’t quite caught up to Microsoft’s market capitalization yet, but it’