15 mins to migrate everything from my 3.10dev8.04.1 working image to a fresh dev8.05.1 using my Installer script.
This was mostly just waiting for downloads to occur and to answer ok to a few dialogs that pop up for certain changesets.

This included installing almost everything from http://installer.pbwiki.com (LPF, fixes, packages, etc.), FFI, Balloon3D, VMMaker, restoring several Workspaces to their saved- to-file contents, reloading all my own work from my local Monticello repository, applying a few mantis fixes, loading several other packages from SqueakMap, Universes and SqueakSource and some other changesets from my loacal drive to make generating a VM happy. 

Thx!

Ken G. Brown

>Date: Fri, 9 May 2008 18:12:29 +0200
>From: "Damien Cassou" <damien.cassou at gmail.com>
>Subject: [squeak-dev] [ANN][Squeak-dev Images] May 2008 versions
>To: "The general-purpose Squeak developers list"
>	<squeak-dev at lists.squeakfoundation.org>,	"Seaside - general
>	discussion" <seaside at lists.squeakfoundation.org>
>Message-ID:
>	<6ac749c10805090912h6330e548y1ed030a48b96e98c at mail.gmail.com>
>Content-Type: text/plain; charset=ISO-8859-1
>
>Hi,
>
>I've just uploaded new squeak-dev and squeak-web images based on
>Squeak3.9.1-7075 and Squeak3.10-7159.
>
>Download: https://gforge.inria.fr/frs/?group_id=1211
>
>More information and download links:
>http://damien.cassou.free.fr/squeak-dev.html
>
>Changes in this version:
>---------------------------
>
>- Algernon has been included in the beta images
>(http://news.squeak.org/2008/05/07/algernon-your-personal-assistant-for-squeak/).
>- Diff Tools have also been included in the beta images
>(http://astares.blogspot.com/2008/04/diff-tools-for-squeak.html)
>- Monticello 1.5 has been removed from the beta images because it
>seems to cause some troubles. However, I would like to reintroduce it
>as soon as people tell me it's now ok.
>- Magritte and Pier have been updated in the web images
>- OB-Enhancements saw a lot of bug fixes and new features (inclusion
>of smart groups, double-click support on some items...)
>- Lots of fixes for OB-Standard
>- UIEnhancements has been updated
>
<snip>