This is not exactly related to technology, but my friend Jan Jarrell recently left adult ed after 15 years of teaching ESOL and being an administrator, and took a position on the English/ESOL faculty at San Diego City College. She has a blog at http://collegetransitions.blogspot.com/ where she is posting her thoughts about what adult ESOL students need in the way of preparation and support to be successful in college.
This is a hot topic right now in adult education. There is a whole web site devoted to transitioning adult ed students to college, the National College Transition Network. They have a list of promising practices at http://www.collegetransition.org/promising/practice.html
CAELA, an ESL Resources project, has a brief that reviews the research on transitioning adult ed students to post secondary at http://www.cal.org/caela/esl_resources/briefs/transition.html.
Focus on Basics has a whole issue on Transitions, at http://www.ncsall.net/index.php?id=154
There is also a paper from NCSALL on transition posted here