I should post a disclaimer: I’m coming from a recent wipe, after playing around with a ROM based on Blur.

ConnectBot:

Portable SSH client that just works. SSH, mobile phone, sold.  I even use it while sitting at my desk, so I can focus on other things on my computer.

AndFTP:

An FTP Client for your Android phone, and it wins.  I use AndFTP to upload pictures/Screenshots to my server, while I’ve also used it to back up a site while on the road.  While 3G is fast, it’s nowhere near optimal for any reasonably sized file.. however, when needed it’s the best FTP Client I’ve found on the Android Market.

Another use, which has been great, is using it to connect to my home server.  I’ve used it to change the music on my phone while on the road, I’ve even used it to back up and restore files on my phone and SD card while 2000 miles away.

Google Voice:

If you have a GV account, this app is a necessity. I have GV set up as voice mail for ALL my phones, meaning no matter what line I’m called on I get visual voicemail (and MP3 Voicemails).  Aside from the highpoint of Visual Voicemail, it adds a lot of great features on the handset like cheap international calling.

WPtoGO:

WordPress to go. Self explanatory.  However, the newest version (I think released in September) seems to run a LOT better and have a few more features.  For someone who uses WordPress for every project, WPtoGO is a life saver on the road.

TWIDroid:

In my opinion this is the best Twitter client for Android.   Although I’m not greatly active on Twitter, I definitely use it to keep up with the times.  Twidroid is not only simple to use, but it seems to have all the functions of desktop twitter clients.  DEFINATELY worth checking out.

Photoshop Mobile:

Umm.. I’m kind of mixed on this application, but first let me explain its benefits and I’ll write a review for it later tonight.  Often camera’s on phones can distort a picture and there’s no way to correct the picture until you get to your computer.  While Mobile Photoshop might be limited, I’ve used it on a couple of pictures and it’s really made the difference.  From overexposed weird angle to a relatively clear shot with the angle corrected in minutes.   I’ve read a couple complaints about how limited the application is, however it’s perfect for the quick fix before uploading to your favorite social network site (or blog).