Sound Waves #7 was supposed to be out this weekend.  But I didn't even get my copies.  So I checked with the printer.  The order is still showing payment pending.  I did pay, however, and have the receipt to prove it.  I just emailed them to try and get this straightened out.  It might be another couple of weeks before the issue comes out.  But this is because PayPal biffed the payment.  I apologize for the delay, but I'm working on fixing it.