ISE Preview, the ISE Alias, and the PsEdit Function
In the PowerShell ISE Preview, the "ise" alias should not launch a new instance of the old powershell_ise.exe, it should open the script given to it as an argument in a new tab in the currently-running host ISE process (just the like psEdit function does).
Personally, I prefer to open scripts into new tabs using "ise" instead of "psedit" because it is shorter (and also a habit burned in from years of use). When the new PowerShell ISE is released later this year, please make "ise" an alias for the psEdit function, or a function in its own right, or at least otherwise continue making "ise" open up files in new tabs. When "ise" is run in the console powershell.exe, it should continue to launch a new powershell_ise.exe process and open the targeted script as expected. Thanks!