DR 60 has been available for some time as it came out around the time the V1 did. It’s about $1400 and holds 60 GB, about 4.5 hours. Keep in mind that with the EX1 you’re limited to 25mbps CBR HDV spec.
Currently you can gat two 16 GB cards for just under $1800 which would give you a combined 140 minutes at the above data rate (100 minutes at XDCAM rate).
Depending on what happens at MacWorld you can get a MacBook Pro for about $2000 and there may be a $1500 13.3″ model announced. At that price you can offload cards at 10x, have client screen shots and do a rough cut (assuming you have an assistant).
There may be good specific reasons to get a DR 60 but given the prospect of 32GB cards and the dropping cost of laptops, there are alternatives.