Bought it. Functional.
I have been a long time user of PDFpen, having bought it long before the App Store, I fail to see why I had pay $0.99 extra.

I've been using PDF Expert on my iPad and like it, but I now trying PDFPen for iPad - see if the iCloud hookup makes it better.

Wish, I'd found it sooner. Very handy. Combined with Touvaly, this is great for getting control of multiple projects rolling out on my servers.
Free. Keeps getting better.

With Lion, this is now non-working.

If you are comfortable with the command line - try the links here http://tug.org/pipermail/macostex-archives/2011-February/046566.html
xpf tool set. free.

Right, first things first.
I have used a lot of VPN boxes over the years mainly IPsec (and Netgear's) implementation, there have always been little niggles.
IPSecuritas has been the only saving grace.

Synology just upgraded their firmware to 3.1-1742 and it brings Airplay, but Also VPN support (either PPTP or OpenVPN). I think that OpenVPN.
Viscosity is a really elegant, solid VPN client, made a profile on the VPN Server, exported it, imported into Viscosity...connection. A good solid connection. First time.

1 simple thing it does is; push all traffic through the tunnel - Netgear does not. That is worth the $9 alone.

Very impressed. Viscosity is the kind of utility that looks like it belongs on the mac.